My MACs line says: MACs hmac-ripemd160,hmac-sha2-256,hmac-sha2-512,[email protected]
I believe this is hardened, isn't it? Thanks, Eric On Wed, Feb 10, 2021 at 9:40 AM kuisathaverat <[email protected]> wrote: > hmac-* are Message authentication code algorithms (MACs), so you have to > configure your Message authentication code algorithms (MACs) supported, for > example > > MACs hmac-sha2-256,hmac-sha2-512 > > see > https://www.ssh.com/ssh/sshd_config/#common-configuration-changes-for-the-enterprise > > El mié, 10 feb 2021 a las 17:24, Eric Fetzer (<[email protected]>) > escribió: > >> Hmmm, I already hardened by that link: >> https://www.ssh.com/ssh/sshd_config >> >> My /etc/ssh/sshd_config has: >> >> Ciphers aes128-ctr,aes192-ctr,aes256-ctr >> >> This is still showing up on my security scan though. Am I missing >> something? >> >> Thanks, >> Eric >> >> On Tue, Feb 9, 2021 at 12:23 PM kuisathaverat <[email protected]> >> wrote: >> >>> There is work in progress to bump the version of the library and convert >>> the sshd-module in a plugin to resolve this kind of issues quickly. For the >>> moment you can configure your sshd servers on the Agents side to do not >>> allow weak ciphers, see https://www.ssh.com/ssh/sshd_config. >>> >>> https://github.com/jenkinsci/sshd-module/pull/37 >>> https://github.com/jenkinsci/sshd-module/pull/38 >>> >>> >>> El mar, 9 feb 2021 a las 17:19, [email protected] (< >>> [email protected]>) escribió: >>> >>>> I'm sorry, I just saw the last comment on here and, once again, this >>>> showed up on our vulnerability report. I don't get exactly what I need to >>>> do in order to fix this. Can someone lay it out for me please? Thanks - >>>> Eric >>>> >>>> On Wednesday, August 26, 2020 at 12:39:40 PM UTC-6 [email protected] >>>> wrote: >>>> >>>>> I was wrong you cannot configure the ciphers for the ssh server on the >>>>> Java security files. The SSH server on Jenkins uses the >>>>> https://github.com/apache/mina-sshd , IIRC the Jenkins implementation >>>>> of the ssh server not read the sshd_config files so it is not posible to >>>>> configure the ssh server. Apache mina has deprecated and disable those >>>>> algorithms on 2.6.0 https://issues.apache.org/jira/browse/SSHD-1004, >>>>> the sshd-module and CLI are using 1.7.0 >>>>> https://github.com/jenkinsci/sshd-module/blob/master/pom.xml#L42 and >>>>> https://github.com/jenkinsci/jenkins/blob/master/cli/pom.xml#L77 So I >>>>> guess both should bump the dependency to remove support for weak >>>>> algorithms >>>>> >>>>> >>>>> El miércoles, 26 de agosto de 2020 a las 16:06:22 UTC+2, >>>>> [email protected] escribió: >>>>> >>>>>> I think I found the solution to this: >>>>>> >>>>>> >>>>>> https://www.thegeekdiary.com/how-to-disable-md5-based-hmac-algorithms-for-ssh/ >>>>>> >>>>>> >>>>>> On Tuesday, August 25, 2020 at 1:59:49 PM UTC-6 [email protected] >>>>>> wrote: >>>>>> >>>>>>> I'm confused. It doesn't look like the ciphers the vulnerability is >>>>>>> citing are allowed in the java.security file on this system. We're >>>>>>> getting >>>>>>> flagged for: >>>>>>> >>>>>>> hmac-md5 >>>>>>> hmac-md5-96 >>>>>>> hmac-sha1-96 >>>>>>> >>>>>>> Settings are: >>>>>>> >>>>>>> jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, DH keySize < >>>>>>> 1024, \ >>>>>>> EC keySize < 224, 3DES_EDE_CBC, anon, NULL >>>>>>> >>>>>>> Am I missing this, not a java security expert by any means... >>>>>>> Thanks! >>>>>>> On Monday, August 24, 2020 at 11:09:43 AM UTC-6 [email protected] >>>>>>> wrote: >>>>>>> >>>>>>>> Yes, configuring the ciphers accepted by your JDK edit the >>>>>>>> file lib\security\java.security (the path will vary based on your Java >>>>>>>> version) >>>>>>>> >>>>>>>> El lunes, 24 de agosto de 2020 a las 16:48:22 UTC+2, >>>>>>>> [email protected] escribió: >>>>>>>> >>>>>>>>> Hi all! I'm getting hit by my secuity team for a vulnerability >>>>>>>>> for the Jenkins CLI via ssh allowing the following weak ciphers: >>>>>>>>> >>>>>>>>> hmac-md5 >>>>>>>>> hmac-md5-96 >>>>>>>>> hmac-sha1-96 >>>>>>>>> >>>>>>>>> Is there a way to configure ciphers accepted for the Jenkins CLI? >>>>>>>>> >>>>>>>>> Thanks, >>>>>>>>> Eric >>>>>>>>> >>>>>>>> -- >>>> You received this message because you are subscribed to a topic in the >>>> Google Groups "Jenkins Users" group. >>>> To unsubscribe from this topic, visit >>>> https://groups.google.com/d/topic/jenkinsci-users/f84HCfhF4vY/unsubscribe >>>> . >>>> To unsubscribe from this group and all its topics, send an email to >>>> [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/jenkinsci-users/07db750a-9c00-40ee-bc68-0a2b051c48fdn%40googlegroups.com >>>> <https://groups.google.com/d/msgid/jenkinsci-users/07db750a-9c00-40ee-bc68-0a2b051c48fdn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> >>> >>> -- >>> Un Saludo >>> Iván Fernández Calvo >>> https://www.linkedin.com/in/iv%C3%A1n-fern%C3%A1ndez-calvo-21425033 >>> >>> -- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "Jenkins Users" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/jenkinsci-users/f84HCfhF4vY/unsubscribe >>> . >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/jenkinsci-users/CAKo5QrruVhwNoAi_XfMoFmHf_iwg-wPVBM%2BiwyRajRuyvmrbeQ%40mail.gmail.com >>> <https://groups.google.com/d/msgid/jenkinsci-users/CAKo5QrruVhwNoAi_XfMoFmHf_iwg-wPVBM%2BiwyRajRuyvmrbeQ%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "Jenkins Users" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/jenkinsci-users/f84HCfhF4vY/unsubscribe >> . >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/jenkinsci-users/CAByBicY8swNixDjYvy0_VkiRWZKs_wrw6QFm0jxOVFR1rEx%3DKw%40mail.gmail.com >> <https://groups.google.com/d/msgid/jenkinsci-users/CAByBicY8swNixDjYvy0_VkiRWZKs_wrw6QFm0jxOVFR1rEx%3DKw%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > > > -- > Un Saludo > Iván Fernández Calvo > https://www.linkedin.com/in/iv%C3%A1n-fern%C3%A1ndez-calvo-21425033 > > -- > You received this message because you are subscribed to a topic in the > Google Groups "Jenkins Users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/jenkinsci-users/f84HCfhF4vY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jenkinsci-users/CAKo5Qrr8WB8JO%3DB-1ZWiOFDi0eGA%2BDftezyF21LG9hpAHLB_0Q%40mail.gmail.com > <https://groups.google.com/d/msgid/jenkinsci-users/CAKo5Qrr8WB8JO%3DB-1ZWiOFDi0eGA%2BDftezyF21LG9hpAHLB_0Q%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. 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