Hi Jeff,

Thank you for identifying the issue with the realm trust scenario.
I uploaded the TTD and network traces, and the kerberos keys for the
S4U2Self failure with an IPA/AD forest trust setup in the new
workspace.

--
Julien Rische
Software Engineer
Red Hat

On Tue, Sep 20, 2022 at 7:06 PM Jeff McCashland (He/him)
<[email protected]> wrote:
>
> [Updated SR ID on Subject]
>
> Hi Julien,
>
> We have created SR 2209200040006923 to track this alternate scenario where 
> all the requisite data structures are in the PAC. Please upload LSASS TTT 
> traces as before, and upload using these new credentials:
>
> Log in as: [email protected]
> 1-Time: 3xx3+xW]
>
> Workspace link:
> https://support.microsoft.com/files?workspace=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJ3c2lkIjoiMDM4NDM5ZTgtZjI1ZC00Y2FmLTkwMmEtNWIyNDRiNGEyZDMxIiwic3IiOiIyMjA5MjAwMDQwMDA2OTIzIiwiYXBwaWQiOiI0ZTc2ODkxZC04NDUwLTRlNWUtYmUzOC1lYTNiZDZlZjIxZTUiLCJzdiI6InYxIiwicnMiOiJFeHRlcm5hbCIsInd0aWQiOiJlYjNjOTdhZi1lMTdjLTRhZTctYjFlMy0yNGZlOTU3ZmNkMjMiLCJpc3MiOiJodHRwczovL2FwaS5kdG1uZWJ1bGEubWljcm9zb2Z0LmNvbSIsImF1ZCI6Imh0dHA6Ly9zbWMiLCJleHAiOjE2NzE0NjkzNDMsIm5iZiI6MTY2MzY5MzM0M30.aeANIe2nm_SnaTLrVFqBibVpBwOe3I3wmO2fLkXPKqplXqI25krK3M2oHDLCvHIM6LXJ7Z97CKWddAho_qUs7AXRWG8Ati7vzOqEW1jegi3t-nnUcNMDu_KErIES6oTLxinQOvRdpApr0WuJf_iJby4gK7EgC8L8JOvNy1X0zwArbJaLBOMjdw1aDJa__m3mw7aAMOy3FTYaR9uKGPC9ZllcAJprETOU24Ts0-HThX67q0ZXdSvxlLSiiUTNA6hBGQ4SFBFgNVtpo7ox5ZYEB1mwpy7X9zAYo3usSCfRKe0ju1LWKcke5CN8r5cjzUBZegCjaAcDpZQ5MKbQnZDd3g&wid=038439e8-f25d-4caf-902a-5b244b4a2d31
>
> Best regards,
> Jeff McCashland (He/him) | Senior Escalation Engineer | Microsoft Protocol 
> Open Specifications Team
> Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone: (UTC-08:00) 
> Pacific Time (US and Canada)
> Local country phone number found here: 
> http://support.microsoft.com/globalenglish | Extension 1138300
>
> -----Original Message-----
> From: Jeff McCashland (He/him)
> Sent: Tuesday, September 20, 2022 8:55 AM
> To: Alexander Bokovoy <[email protected]>
> Cc: Julien Rische <[email protected]>; [email protected]; 
> Microsoft Support <[email protected]>
> Subject: RE: [cifs-protocol] [EXTERNAL] KERB-ERROR-DATA code 136 - 
> TrackingID#2209120040006251
>
> Thank you Alexander, I did miss that the structure was present.
>
> Julien, please hold off on uploading the TTT traces for the moment. To help 
> us keep straight on this end, I'm having a new SR made and will send new 
> credentials for uploading the next set of traces.
>
> Best regards,
> Jeff McCashland (He/him) | Senior Escalation Engineer | Microsoft Protocol 
> Open Specifications Team
> Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone: (UTC-08:00) 
> Pacific Time (US and Canada) Local country phone number found here: 
> http://support.microsoft.com/globalenglish | Extension 1138300
>
> -----Original Message-----
> From: Alexander Bokovoy <[email protected]>
> Sent: Monday, September 19, 2022 10:32 PM
> To: Jeff McCashland (He/him) <[email protected]>
> Cc: Julien Rische <[email protected]>; [email protected]; 
> Microsoft Support <[email protected]>
> Subject: Re: [cifs-protocol] [EXTERNAL] KERB-ERROR-DATA code 136 - 
> TrackingID#2209120040006251
>
> Hi Jeff,
>
> On ma, 19 syys 2022, Jeff McCashland (He/him) wrote:
> > Hi Alexander,
> >
> > Unfortunately, the error information in the network trace, as you
> > notice, is not sufficient to determine the cause of failure, which is
> > why I collected the TTT trace. The TTT trace I received fails twice,
> > both times due to the missing LOGON_INFO structure (1). As I read the
> > [MS-PAC] documentation quoted below, structures 1, 6, 7, and A are all
> > required. Each element states "PAC structures MUST contain one buffer
> > of this type". You mentioned one of the originally attached traces
> > includes structures 1, 6, and 7, but I don't see A listed.
> >
> > Do you have any examples that appear to be the same failure, where all 4 
> > required structures are present?
>
> type A is present in the list I provided in my previous email (Client Info 
> Type (10) is the type A), sorry for not calling it out explicitly:
>
>  ad-data: 
> 070000000000000001000000e001000078000000000000000c000000a200000058020000...
>      Verified Server checksum 16 keytype 18 using keytab principal 
> krbtgt/[email protected] (id=keytab.13 same=0) (db7c3ac9...)
>      Verified KDC checksum 20 keytype 20 using keytab principal 
> krbtgt/[email protected] (id=keytab.1 same=0) (bb2dfa43...)
>      Num Entries: 7
>      Version: 0
>      Type: Logon Info (1)
>      Type: UPN DNS Info (12)
>      Type: Unknown (17)
>      Type: Unknown (18)
>      Type: Client Info Type (10)
>      Type: Server Checksum (6)
>      Type: Privsvr Checksum (7)
>
> So all four required buffers are present but AD DCs reject S4U requests.
>
> Julien is going to generate a TTT trace for this use case. I'm sure we might 
> have some incompatibility in FreeIPA implementation but we cannot find what 
> is broken so far, due to this undocumented error response.
>
> One of my theories is that it might be related to the FAST channel wrapping 
> ticket. FAST is the pre-auth type 136. Is AD DC expecting that the FAST 
> channel ticket, if present, also must have a PAC with the required buffers? 
> Where is this documented?
>
> So far, 'MS-KILE 3.3.5.7.4 Compound Identity' might be the closest one but it 
> doesn't apply as the FAST TGS-REQ is armored with the TGT of a computer in a 
> trusted forest, not from the AD itself. This part of MS-KILE spec probably 
> needs a bit of clarification as well.
>
> Another theory is that MIT Kerberos might produce incorrect Client Info 
> package -- it supposed to have username@userrealm formatted name according to 
> 'MS-SFU 3.2.5.1.1 KDC Replies with Referral TGT':
>
> ---------------
> If the KDC supports the Privilege Attribute Certificate Data Structure 
> [MS-PAC], and a PAC is provided, the referral TGT Name field in the 
> PAC_CLIENT_INFO structure of the PAC contains username@userRealm. This format 
> is the syntax of the single-string representation ([RFC1964] section 2.1.1) 
> using the username and userRealm fields from the PA-FOR-USER 
> pre-authentication data.
> ---------------
>
> We send this client info buffer:
>
> Type: Client Info Type (10)
>     Size: 50
>     Offset: 808
>     PAC_CLIENT_INFO_TYPE: 
> 808cae3b8ac2d801280068006f00730074002f006d00610073007400650072002e006900...
>         ClientID: Sep  7, 2022 10:19:57.000000000 EEST
>         Name Length: 40
>         Name: host/master.ipa.test
>
> instead of 'host/[email protected]'.
>
> >
> > Best regards,
> > Jeff McCashland (He/him) | Senior Escalation Engineer | Microsoft
> > Protocol Open Specifications Team
> > Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone:
> > (UTC-08:00) Pacific Time (US and Canada) Local country phone number
> > found here:
> > https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsuppo
> > rt.microsoft.com%2Fglobalenglish&amp;data=05%7C01%7Cjeffm%40microsoft.
> > com%7C54153b0d6a314e4c635b08da9ac975a2%7C72f988bf86f141af91ab2d7cd011d
> > b47%7C1%7C0%7C637992487471990696%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wL
> > jAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000%7C%7C%7C&
> > amp;sdata=Cf5nCrlWOp%2Fq2yefHW0CVasW4zl8B%2BuOtdFxlyuB6cY%3D&amp;reser
> > ved=0 | Extension 1138300
> >
> > -----Original Message-----
> > From: Alexander Bokovoy <[email protected]>
> > Sent: Monday, September 19, 2022 4:24 AM
> > To: Jeff McCashland (He/him) <[email protected]>
> > Cc: Julien Rische <[email protected]>; [email protected];
> > Microsoft Support <[email protected]>
> > Subject: Re: [cifs-protocol] [EXTERNAL] KERB-ERROR-DATA code 136 -
> > TrackingID#2209120040006251
> >
> > Hi Jeff,
> >
> > On pe, 16 syys 2022, Jeff McCashland (He/him) via cifs-protocol wrote:
> > > Hi Julien,
> > >
> > > Based on my debugging and research, the issue appears to be that the
> > > PAC does not include PAC_LOGON_INFO (type 1).
> > >
> > > The PAC appears to only include PAC_INFO_BUFFER types 6, 7, and A.
> >
> > We see the same problem for the IPA trace from the original Julien's
> > attachment [2]: krb5_1_20_ipa_ad_trust_s4u2self.(pcapng|keytab) files
> >
> > Packet 9 of the trace contains TGS-REQ with a PAC with seven buffers, 
> > including types 1, 6, and 7:
> >
> > ad-data: 
> > 070000000000000001000000e001000078000000000000000c000000a200000058020000...
> >     Verified Server checksum 16 keytype 18 using keytab principal 
> > krbtgt/[email protected] (id=keytab.13 same=0) (db7c3ac9...)
> >     Verified KDC checksum 20 keytype 20 using keytab principal 
> > krbtgt/[email protected] (id=keytab.1 same=0) (bb2dfa43...)
> >     Num Entries: 7
> >     Version: 0
> >     Type: Logon Info (1)
> >     Type: UPN DNS Info (12)
> >     Type: Unknown (17)
> >     Type: Unknown (18)
> >     Type: Client Info Type (10)
> >     Type: Server Checksum (6)
> >     Type: Privsvr Checksum (7)
> >
> > Yet, we get the same Kerberos error:
> >
> > krb-error
> >     pvno: 5
> >     msg-type: krb-error (30)
> >     stime: 2022-09-07 07:20:01 (UTC)
> >     susec: 583266
> >     error-code: eRR-GENERIC (60)
> >     realm: WIN2022.TEST
> >     sname
> >         name-type: kRB5-NT-ENTERPRISE-PRINCIPAL (10)
> >         sname-string: 1 item
> >             SNameString: host/[email protected]
> >     e-data: 
> > 3081f43081f1a10402020088a281e80481e5a081e23081dfa081dc3081d9a003020112a2...
> >
> > The e-data contains the same style sequence with KERB-ERROR-DATA code 136:
> >
> >   0 244: SEQUENCE {
> >   3 241:   SEQUENCE {
> >   6   4:     [1] {
> >   8   2:       INTEGER 136
> >        :       }
> >  12 232:     [2] {
> >  15 229:       OCTET STRING
> >        :         A0 81 E2 30 81 DF A0 81 DC 30 81 D9 A0 03 02 01
> >        :         12 A2 81 D1 04 81 CE 65 E8 3C 7A 86 1A C6 04 DC
> >        :         8B C7 FB E7 2A 18 0B 18 06 C0 15 3C 4D 09 9C 66
> >        :         06 69 4F 40 1C 8C 39 29 B6 1C BE 4C DB 0D 5C 98
> >        :         2B A8 34 04 6C 67 FB 5D 92 A6 73 CF 7F 84 00 84
> >        :         F0 33 9B 35 96 96 2E FD 94 D3 4E BC 4F 03 C6 56
> >        :         48 45 CA E2 FE 75 B0 3C 21 FE 1B 02 77 70 F3 5F
> >        :         6A 48 16 D1 91 85 94 FF B9 93 2F F1 4C 99 05 80
> >        :                 [ Another 101 bytes skipped ]
> >        :       }
> >        :     }
> >        :   }
> >
> >
> >
> > >
> > > 2.4 PAC_INFO_BUFFER
> > > ulType (4 bytes): A 32-bit unsigned integer in little-endian format
> > > that describes the type of data present in the buffer contained at
> > > Offset.
> > >
> > > 0x00000001 Logon information (section 2.5). PAC structures MUST contain 
> > > one buffer of this type. Additional logon information buffers MUST be 
> > > ignored.
> > > 0x00000006 Server checksum (section 2.8). PAC structures MUST contain one 
> > > buffer of this type. Additional logon server checksum buffers MUST be 
> > > ignored.
> > > 0x00000007 KDC (privilege server) checksum (section 2.8). PAC structures 
> > > MUST contain one buffer of this type. Additional KDC checksum buffers 
> > > MUST be ignored.
> > > 0x0000000A Client name and ticket information (section 2.7). PAC 
> > > structures MUST contain one buffer of this type. Additional client and 
> > > ticket information buffers MUST be ignored.
> > >
> > > Let me know if that resolves one or both issues.
> > >
> > > Best regards,
> > > Jeff McCashland (He/him) | Senior Escalation Engineer | Microsoft
> > > Protocol Open Specifications Team
> > > Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone:
> > > (UTC-08:00) Pacific Time (US and Canada) Local country phone number
> > > found here:
> > > https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsup
> > > po
> > > rt.microsoft.com%2Fglobalenglish&amp;data=05%7C01%7Cjeffm%40microsoft.
> > > com%7C163a1dbf984c42d8412f08da9a3171be%7C72f988bf86f141af91ab2d7cd01
> > > 1d
> > > b47%7C1%7C0%7C637991834754844507%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4
> > > wL
> > > jAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7
> > > C&
> > > amp;sdata=gZnYaF1%2B2KWsTHCKlF%2BBP1OY3El9QKI33R86ckSOgr0%3D&amp;res
> > > er
> > > ved=0 | Extension 1138300
> > >
> > > -----Original Message-----
> > > From: Jeff McCashland (He/him)
> > > Sent: Wednesday, September 14, 2022 1:33 PM
> > > To: Julien Rische <[email protected]>
> > > Cc: [email protected]; Microsoft Support
> > > <[email protected]>
> > > Subject: RE: [EXTERNAL] KERB-ERROR-DATA code 136 -
> > > TrackingID#2209120040006251
> > >
> > > Hi Julien,
> > >
> > > I have received the files you uploaded. It is not necessary to run the 
> > > alternate commands if the first one worked. Please retain the tools and 
> > > information in case we need to collect additional traces.
> > >
> > > I will analyze these traces and let you know what I find.
> > >
> > > Best regards,
> > > Jeff McCashland (He/him) | Senior Escalation Engineer | Microsoft
> > > Protocol Open Specifications Team
> > > Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone:
> > > (UTC-08:00) Pacific Time (US and Canada) Local country phone number
> > > found here:
> > > https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsup
> > > po
> > > rt.microsoft.com%2Fglobalenglish&amp;data=05%7C01%7Cjeffm%40microsoft.
> > > com%7C163a1dbf984c42d8412f08da9a3171be%7C72f988bf86f141af91ab2d7cd01
> > > 1d
> > > b47%7C1%7C0%7C637991834754844507%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4
> > > wL
> > > jAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7
> > > C&
> > > amp;sdata=gZnYaF1%2B2KWsTHCKlF%2BBP1OY3El9QKI33R86ckSOgr0%3D&amp;res
> > > er
> > > ved=0 | Extension 1138300
> > >
> > > -----Original Message-----
> > > From: Julien Rische <[email protected]>
> > > Sent: Wednesday, September 14, 2022 12:30 PM
> > > To: Jeff McCashland (He/him) <[email protected]>
> > > Cc: [email protected]; Microsoft Support
> > > <[email protected]>
> > > Subject: Re: [EXTERNAL] KERB-ERROR-DATA code 136 -
> > > TrackingID#2209120040006251
> > >
> > > Hi Jeff,
> > >
> > > My bad, I tried to log in again and the file was there. I probably messed 
> > > up with the session cookie.
> > >
> > > I uploaded these three files into the workspace:
> > > * lsass01.run.zip: compressed output file from TTTracer.exe
> > > * mit_kdc.pcap: Kerberos network trace captured on the MIT KDC
> > > * credentials.keytab: Kerberos keys from MIT and AD
> > >
> > > I used the first TTTrace.exe command you have sent. Please let me know if 
> > > I should use the second command you mentioned instead.
> > >
> > > --
> > > Julien Rische
> > > Software Engineer
> > > Red Hat
> > >
> > > On Wed, Sep 14, 2022 at 5:30 PM Jeff McCashland (He/him) 
> > > <[email protected]> wrote:
> > > >
> > > > Hi Julien,
> > > >
> > > > Please ensure that you are logging onto the workspace using the 
> > > > provided credentials, as it may automatically log you on with other 
> > > > credentials and provide a different view. I have confirmed the .zip 
> > > > file is on the workspace and available for you to download.
> > > >
> > > > Also, please try these alternate steps in place of step 1:
> > > > a) On your Windows Server, open an elevated command prompt and enter 
> > > > the command: tasklist /FI 'IMAGENAME eq lsass'
> > > > b) Note the PID number in the output from the above command, and use it 
> > > > in the next command:
> > > > c) Execute: C:\TTD\TTTracer.exe -attach PID
> > > >
> > > > Best regards,
> > > > Jeff McCashland (He/him) | Senior Escalation Engineer | Microsoft
> > > > Protocol Open Specifications Team
> > > > Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone:
> > > > (UTC-08:00) Pacific Time (US and Canada) Local country phone
> > > > number found here:
> > > > https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fs
> > > > up
> > > > po
> > > > rt.microsoft.com%2Fglobalenglish&amp;data=05%7C01%7Cjeffm%40microsoft.
> > > > com%7C9dc19bb9dec5477ad0bb08da96877b29%7C72f988bf86f141af91ab2d7cd
> > > > 01
> > > > 1d
> > > > b47%7C1%7C0%7C637987805901775050%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiM
> > > > C4
> > > > wL
> > > > jAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C
> > > > %7
> > > > C&
> > > > amp;sdata=JtHTcsXnoZTTyll5asTlG3spHubJ1U8OzSlM2VsIvp0%3D&amp;reser
> > > > ve
> > > > d=
> > > > 0 | Extension 1138300
> > > >
> > > > -----Original Message-----
> > > > From: Julien Rische <[email protected]>
> > > > Sent: Wednesday, September 14, 2022 2:59 AM
> > > > To: Jeff McCashland (He/him) <[email protected]>
> > > > Cc: [email protected]; Microsoft Support
> > > > <[email protected]>
> > > > Subject: Re: [EXTERNAL] KERB-ERROR-DATA code 136 -
> > > > TrackingID#2209120040006251
> > > >
> > > > Hello Jeff,
> > > >
> > > > Thank you for your response. I logged into the file transfer workspace, 
> > > > but it is empty. I don't see any "PartnerTTDRecorder_x86_x64.zip" file 
> > > > inside.
> > > >
> > > > I see a "tttracer.exe" executable file is already provided on the 
> > > > system, but there is no window popping up when I run the command you 
> > > > have sent me. So I guess it is not the same one. I am using Windows 
> > > > Server 2019 Standard.
> > > >
> > > > Could you add the TTDRecorder file in the workspace please?
> > > >
> > > > Thank you in advance,
> > > >
> > > > --
> > > > Julien Rische
> > > > Software Engineer
> > > > Red Hat
> > > >
> > > > On Tue, Sep 13, 2022 at 10:37 PM Jeff McCashland (He/him) 
> > > > <[email protected]> wrote:
> > > > >
> > > > > Hi Julien,
> > > > >
> > > > > I have created a File Transfer workspace for exchanging files (link 
> > > > > and credentials below) related to this issue: "Cross-realm AD TGS 
> > > > > request from an MIT Kerberos client (realm trust)[1]". To 
> > > > > troubleshoot this issue, I would like to collect LSASS TTT traces and 
> > > > > a concurrent network packet capture.
> > > > >
> > > > > The LSASS traces can be quite large, but are highly compressible, so 
> > > > > please add them to a .zip archive before uploading (file transfer 
> > > > > workspace credentials are below). Please log into the workspace and 
> > > > > find PartnerTTDRecorder_x86_x64.zip available for download. The x64 
> > > > > tool can be staged onto the Windows server in any location 
> > > > > (instructions below assume C:\TTD).
> > > > >
> > > > > To collect the needed traces:
> > > > >         1. From a PowerShell prompt, execute:
> > > > >                 C:\TTD\tttracer.exe -Attach ([int](Get-Process -NAME 
> > > > > lsass | Format-Wide -Property 
> > > > > ID).formatEntryInfo.formatPropertyField.propertyValue)
> > > > >         2. Wait for a little window to pop up in top left corner of 
> > > > > your screen, titled "lsass01.run"
> > > > >         3. start a network trace using netsh or WireShark, etc.
> > > > >         4. Repro the attempted operation
> > > > >         5. Stop the network trace and save it
> > > > >         6. CAREFULLY: uncheck the checkbox next to "Tracing" in the 
> > > > > small "lsass01.run" window. Do not close or exit the small window or 
> > > > > you will need to reboot.
> > > > >         7. The TTTracer.exe process will generate a trace file, then 
> > > > > print out the name and location of the file.
> > > > > Compress the *.run file into a .zip archive before uploading with the 
> > > > > matching network trace. It is a good idea to reboot the machine at 
> > > > > the next opportunity to restart the lsass process.
> > > > >
> > > > > Workspace credentials:
> > > > > Log in as: [email protected]
> > > > > 1-Time: ;@[r@(E9
> > > > >
> > > > > Link:
> > > > > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%
> > > > > 2F
> > > > > su
> > > > > pp
> > > > > ort.microsoft.com%2Ffiles%3Fworkspace%3DeyJ0eXAiOiJKV1QiLCJhbGci
> > > > > Oi
> > > > > JS
> > > > > Uz
> > > > > I1NiJ9.eyJ3c2lkIjoiNzQ2NmNlOTUtYjQwNi00NzM4LThjMDEtMTJjMTMzNjU4M
> > > > > zA
> > > > > 4I
> > > > > iw
> > > > > ic3IiOiIyMjA5MTIwMDQwMDA2MjUxIiwiYXBwaWQiOiI0ZTc2ODkxZC04NDUwLTR
> > > > > lN
> > > > > WU
> > > > > tY
> > > > > mUzOC1lYTNiZDZlZjIxZTUiLCJzdiI6InYxIiwicnMiOiJFeHRlcm5hbCIsInd0a
> > > > > WQ
> > > > > iO
> > > > > iI
> > > > > yNTE3ZDA2Yi0wNTY1LTQwZTYtYmUwZi0zNWEwNTY1ZTM2NDQiLCJpc3MiOiJodHR
> > > > > wc
> > > > > zo
> > > > > vL
> > > > > 2FwaS5kdG1uZWJ1bGEubWljcm9zb2Z0LmNvbSIsImF1ZCI6Imh0dHA6Ly9zbWMiL
> > > > > CJ
> > > > > le
> > > > > HA
> > > > > iOjE2NzA4NzY3NzcsIm5iZiI6MTY2MzEwMDc3N30.FMEx9xM5hrwYjID69wV0qJ1
> > > > > nD
> > > > > sE
> > > > > ff
> > > > > D9JLWTxZhf0GKPXGa9U8EZy5BbVtOLDQEdyAl4uEyGrDmH1-YlEB-byxDhA_TYjC
> > > > > Xv
> > > > > Fv
> > > > > y6
> > > > > z2Eu5G8GlfV6CKMEDc9JJUYIMAROLBoKHIEQxXBoehoru1Z8cHGtyHqwfJUmfnh_
> > > > > 33
> > > > > mf
> > > > > k6
> > > > > 84qdwrhiMSwxi94AxovZ4n2BVPVzopPi_s1EGiwse28zg8ccKthEAGH4qs3qVmAf
> > > > > _V
> > > > > 7y
> > > > > 8F
> > > > > 52dimwkfLvTSq1AvB3ZI0elDTDh8_rOR1FgW57v1sbVIl1art_hmqquWbJCxa-oW
> > > > > 9_
> > > > > iW
> > > > > kX
> > > > > 2n4OzZNmyhagfgF6XmMqdKl3LuV69u24Q%26wid%3D7466ce95-b406-4738-8c0
> > > > > 1-
> > > > > 12
> > > > > c1
> > > > > 33658308&amp;data=05%7C01%7Cjeffm%40microsoft.com%7C5784d93aa785
> > > > > 43
> > > > > c3
> > > > > 53
> > > > > 5408da9637c306%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C6379
> > > > > 87
> > > > > 46
> > > > > 34
> > > > > 98496191%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2l
> > > > > uM
> > > > > zI
> > > > > iL
> > > > > CJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=ywWLrzP3
> > > > > Yv
> > > > > cZ
> > > > > 9e
> > > > > XwuTqoPq5j1%2FaZisjhea%2F2Tv9nsD0%3D&amp;reserved=0
> > > > >
> > > > > Best regards,
> > > > > Jeff McCashland (He/him) | Senior Escalation Engineer |
> > > > > Microsoft Protocol Open Specifications Team
> > > > > Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone:
> > > > > (UTC-08:00) Pacific Time (US and Canada) Local country phone
> > > > > number found here:
> > > > > https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2
> > > > > Fs
> > > > > up
> > > > > po
> > > > > rt.microsoft.com%2Fglobalenglish&amp;data=05%7C01%7Cjeffm%40microsoft.
> > > > > com%7C5784d93aa78543c3535408da9637c306%7C72f988bf86f141af91ab2d7
> > > > > cd
> > > > > 01
> > > > > 1d
> > > > > b47%7C1%7C0%7C637987463498496191%7CUnknown%7CTWFpbGZsb3d8eyJWIjo
> > > > > iM
> > > > > C4
> > > > > wL
> > > > > jAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%
> > > > > 7C
> > > > > %7
> > > > > C&
> > > > > amp;sdata=HLnwmeRNNJTOW9L1zl6f82H59KU4IN9SAK%2F5bjeWZL8%3D&amp;r
> > > > > es
> > > > > er
> > > > > ve
> > > > > d=0 | Extension 1138300
> > > > >
> > > > > -----Original Message-----
> > > > > From: Jeff McCashland (He/him)
> > > > > Sent: Tuesday, September 13, 2022 12:15 PM
> > > > > To: Julien Rische <[email protected]>
> > > > > Cc: [email protected]; Microsoft Support
> > > > > <[email protected]>
> > > > > Subject: RE: [EXTERNAL] KERB-ERROR-DATA code 136 -
> > > > > TrackingID#2209120040006251
> > > > >
> > > > > [Michael to BCC]
> > > > >
> > > > > Hi Julien,
> > > > >
> > > > > I will reply again in an hour or two with instructions to collect and 
> > > > > upload traces for the scenario. This will be the best way to 
> > > > > determine the actual root cause of the error. Let's start with the 
> > > > > first scenario, then if that answer does not resolve the second 
> > > > > scenario, we'll create a new SR case and collect additional traces.
> > > > >
> > > > > Best regards,
> > > > > Jeff McCashland (He/him) | Senior Escalation Engineer |
> > > > > Microsoft Protocol Open Specifications Team
> > > > > Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone:
> > > > > (UTC-08:00) Pacific Time (US and Canada) Local country phone
> > > > > number found here:
> > > > > https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2
> > > > > Fs
> > > > > up
> > > > > po
> > > > > rt.microsoft.com%2Fglobalenglish&amp;data=05%7C01%7Cjeffm%40microsoft.
> > > > > com%7C5784d93aa78543c3535408da9637c306%7C72f988bf86f141af91ab2d7
> > > > > cd
> > > > > 01
> > > > > 1d
> > > > > b47%7C1%7C0%7C637987463498496191%7CUnknown%7CTWFpbGZsb3d8eyJWIjo
> > > > > iM
> > > > > C4
> > > > > wL
> > > > > jAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%
> > > > > 7C
> > > > > %7
> > > > > C&
> > > > > amp;sdata=HLnwmeRNNJTOW9L1zl6f82H59KU4IN9SAK%2F5bjeWZL8%3D&amp;r
> > > > > es
> > > > > er
> > > > > ve
> > > > > d=0 | Extension 1138300
> > > > >
> > > > > -----Original Message-----
> > > > > From: Michael Bowen <[email protected]>
> > > > > Sent: Monday, September 12, 2022 9:42 AM
> > > > > To: Julien Rische <[email protected]>
> > > > > Cc: [email protected]; Microsoft Support
> > > > > <[email protected]>
> > > > > Subject: RE: [EXTERNAL] KERB-ERROR-DATA code 136 -
> > > > > TrackingID#2209120040006251
> > > > >
> > > > > [DocHelp to bcc]
> > > > >
> > > > > Hi Julien,
> > > > >
> > > > > Thank you for contacting Microsoft Open Specification Support. We 
> > > > > created case number 2209120040006251 for this inquiry. Please leave 
> > > > > the case number in the subject line and cc [email protected] 
> > > > > when responding to emails. One of our team members will follow up 
> > > > > with you soon.
> > > > >
> > > > > Mike Bowen
> > > > > Escalation Engineer - Microsoft Open Specifications
> > > > >
> > > > > -----Original Message-----
> > > > > From: Julien Rische <[email protected]>
> > > > > Sent: Monday, September 12, 2022 7:01 AM
> > > > > To: Interoperability Documentation Help <[email protected]>
> > > > > Cc: [email protected]
> > > > > Subject: [EXTERNAL] KERB-ERROR-DATA code 136
> > > > >
> > > > > [Some people who received this message don't often get email
> > > > > from [email protected]. Learn why this is important at
> > > > > https://aka.ms/LearnAboutSenderIdentification ]
> > > > >
> > > > > Hello team,
> > > > >
> > > > > We are experiencing Active Directory interoperability issues for the 
> > > > > MIT Kerberos 1.20 release, which is introducing generation of PAC for 
> > > > > all tickets by default. There are two scenarios:
> > > > >
> > > > > * Cross-realm AD TGS request from an MIT Kerberos client (realm
> > > > > trust)[1]
> > > > > * Cross-realm S4U2Self request for a FreeIPA service to impersonate 
> > > > > an AD user
> > > > >   (forest trust)[2]
> > > > >
> > > > > In both cases, a TGS-REQ[3][4] against AD using the cross-realm TGT 
> > > > > results in a generic error (MS-SFU 4.2 step 3[5] in S4U2Self case). 
> > > > > We suspect these two failures may have the same underlying cause, 
> > > > > because of the "e-data" attribute from the KRB_ERR_GENERIC 
> > > > > message[6][7]:
> > > > >
> > > > > SEQUENCE {
> > > > >   SEQUENCE {
> > > > >     [1] {
> > > > >       INTEGER 136
> > > > >       }
> > > > >     [2] {
> > > > >       OCTET STRING
> > > > >         ...
> > > > >       }
> > > > >     }
> > > > >   }
> > > > >
> > > > > The octet string is different, but the integer is the same in both 
> > > > > scenarios.
> > > > > According to the MS-KILE specification, this piece of data should be 
> > > > > a KERB-ERROR-DATA structure[8]. However the 136 integer do not match 
> > > > > any of the documented "data-type" values.
> > > > >
> > > > > This error is most likely related to the PAC, because in the realm 
> > > > > trust case, the cross-realm TGS-REQ works in case PAC support is 
> > > > > disable on the MIT KDC (i.e. the MIT TGT does not contain a PAC).
> > > > >
> > > > > Could you please give us more details about KERB-ERROR-DATA code 136, 
> > > > > and check if you see anything wrong in the PACs that are being used 
> > > > > in these 2 scenarios?
> > > > >
> > > > > --
> > > > > Julien Rische
> > > > > Software Engineer
> > > > > Red Hat
> > > > >
> > > > >
> > > > > [1] krb5_1_20_mit_ad_realm_trust.(pcap|keytab) files in
> > > > > attachment [2]
> > > > > krb5_1_20_ipa_ad_trust_s4u2self.(pcapng|keytab) files in
> > > > > attachment [3] krb5_1_20_mit_ad_realm_trust.pcap packet no. 7
> > > > > [4] krb5_1_20_ipa_ad_trust_s4u2self.pcapng packet no. 11 [5]
> > > > > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%
> > > > > 2F
> > > > > do
> > > > > cs
> > > > > .microsoft.com%2Fen-us%2Fopenspecs%2Fwindows_protocols%2Fms-sfu%
> > > > > 2F
> > > > > f3
> > > > > 5b
> > > > > 6902-6f5e-4cd0-be64-c50bbaaf54a5&amp;data=05%7C01%7Cjeffm%40microsoft.
> > > > > com%7C5784d93aa78543c3535408da9637c306%7C72f988bf86f141af91ab2d7
> > > > > cd
> > > > > 01
> > > > > 1d
> > > > > b47%7C1%7C0%7C637987463498496191%7CUnknown%7CTWFpbGZsb3d8eyJWIjo
> > > > > iM
> > > > > C4
> > > > > wL
> > > > > jAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%
> > > > > 7C
> > > > > %7
> > > > > C&
> > > > > amp;sdata=uKOEQ%2FildzknOS5dUiy0qrcwJjTwzgML%2B6Zf1c8KaHs%3D&amp
> > > > > ;r
> > > > > es
> > > > > er
> > > > > ved=0 [6] e-data in krb5_1_20_mit_ad_realm_trust.pcap packet no.
> > > > > 8 or krb5_1_20_mit_ad_realm_trust_edata.blob in attachment [7]
> > > > > e-data in krb5_1_20_ipa_ad_trust_s4u2self.pcapng packet no. 12
> > > > > or krb5_1_20_ipa_ad_trust_s4u2self_edata.blob in attachment [8]
> > > > > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%
> > > > > 2F
> > > > > do
> > > > > cs
> > > > > .microsoft.com%2Fen-us%2Fopenspecs%2Fwindows_protocols%2Fms-kile
> > > > > %2
> > > > > F2
> > > > > 5f
> > > > > abd02-560d-4c1f-8f42-b32e9d97996a&amp;data=05%7C01%7Cjeffm%40mic
> > > > > ro
> > > > > so
> > > > > ft
> > > > > .com%7C5784d93aa78543c3535408da9637c306%7C72f988bf86f141af91ab2d
> > > > > 7c
> > > > > d0
> > > > > 11
> > > > > db47%7C1%7C0%7C637987463498496191%7CUnknown%7CTWFpbGZsb3d8eyJWIj
> > > > > oi
> > > > > MC
> > > > > 4w
> > > > > LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C
> > > > > %7
> > > > > C%
> > > > > 7C
> > > > > &amp;sdata=NrPdAACaR3Srj4XL%2Bk7S7SzsZF%2BV8eRbMbcCSpR5uPI%3D&am
> > > > > p;
> > > > > re
> > > > > se
> > > > > rved=0
> > > > >
> > > >
> > >
> > >
> > > _______________________________________________
> > > cifs-protocol mailing list
> > > [email protected]
> > > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fli
> > > st
> > > s.samba.org%2Fmailman%2Flistinfo%2Fcifs-protocol&amp;data=05%7C01%7C
> > > je
> > > ffm%40microsoft.com%7C163a1dbf984c42d8412f08da9a3171be%7C72f988bf86f
> > > 14
> > > 1af91ab2d7cd011db47%7C1%7C0%7C637991834755000738%7CUnknown%7CTWFpbGZ
> > > sb
> > > 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3
> > > D%
> > > 7C2000%7C%7C%7C&amp;sdata=tokIPnq2Hup7m2%2Fer438hZ1boXeVGZS%2BxMb4Rb
> > > bB
> > > WXs%3D&amp;reserved=0
> >
> > --
> > / Alexander Bokovoy
>
> --
> / Alexander Bokovoy
>


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