Re: rsync security advisory
On Thu 04 Dec 2003, Martin Pool wrote: - rsync version 2.5.6 contains a heap overflow vulnerability that can be used to remotely run arbitrary code. Is this specific to 2.5.6, or are earlier versions also vulnerable? Important detail, as it makes the difference between needing to upgrade older rsync's as well, or only those that are 2.5.6... As Debian provides security patches for the stable release (which contains rsync 2.5.5), I'm wondering whether an update for that is necessary. Paul Slootman -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
Re: [rsync-announce] rsync security advisory
[EMAIL PROTECTED] wrote: rsync 2.5.6 security advisory - December 4th 2003 Background -- The rsync team has received evidence that a vulnerability in rsync was recently used in combination with a Linux kernel vulnerability to compromise the security of a public rsync server. While the forensic evidence we have is incomplete, we have pieced together the most likely way that this attack was conducted and we are releasing this advisory as a result of our investigations to date. Would this be the rsync.gentoo.org box that was compromised on 12-02? Daemian Mack -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
Re: rsync security advisory
On Thu 04 Dec 2003, Paul Haas wrote: On Thu 04 Dec 2003, Martin Pool wrote: - rsync version 2.5.6 contains a heap overflow vulnerability that can be used to remotely run arbitrary code. Is this specific to 2.5.6, or are earlier versions also vulnerable? Important detail, as it makes the difference between needing to upgrade older rsync's as well, or only those that are 2.5.6... As Debian provides security patches for the stable release (which contains rsync 2.5.5), I'm wondering whether an update for that is necessary. Sure looks necessary to me. Thanks. The Debian security team are working on a fixed 2.5.5 for stable now. In fact, it's done, but needs to be built on all the architectures that Debian supports before an announcement can go out. I've also built 2.5.7 for unstable/testing, but as at this time nothing is being installed into the archives (due to the earlier compromise), it won't be available for at least a couple of days :-( In the meantime, interested parties may download http://www.wurtel.cistron.nl/rsync_2.5.7-1_i386.deb (md5sum 985e720f7502c2df9685a2202d36692d) and install that with dpkg -i taking into account its dependencies: libc6 (= 2.3.2.ds1-4), libpopt0 (= 1.7) Paul Slootman signature.asc Description: Digital signature -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
Re: rsync security advisory
On Thu, 4 Dec 2003, Paul Slootman wrote: Date: Thu, 4 Dec 2003 11:34:44 +0100 From: Paul Slootman [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: rsync security advisory On Thu 04 Dec 2003, Martin Pool wrote: - rsync version 2.5.6 contains a heap overflow vulnerability that can be used to remotely run arbitrary code. Is this specific to 2.5.6, or are earlier versions also vulnerable? Important detail, as it makes the difference between needing to upgrade older rsync's as well, or only those that are 2.5.6... As Debian provides security patches for the stable release (which contains rsync 2.5.5), I'm wondering whether an update for that is necessary. Sure looks necessary to me. I downloaded the Debian Stable rsync from http://ftp.us.debian.org/debian/pool/main/r/rsync/rsync_2.5.5.orig.tar.gz with the debian patch http://ftp.us.debian.org/debian/pool/main/r/rsync/rsync_2.5.5-0.1.diff.gz to get what I hope is the source for 2.5.5-0.1. I then got the patch http://rsync.samba.org/ftp/rsync/rsync-2.5.6-2.5.7.diff.gz It mostly applied to 2.5.5-0.1. It succeeds on all of the .c files except for cleanup.c. It fails on all the non-.c files, mostly because those changes update the string 2.5.6 to 2.5.7, which fails. If I understand the attack, it looks like the parts of the rsync-2.5.6-2.5.7.diff which apply to the Debian Stable rsync-2.5.5-0.1 are sufficient to block such attacks. The change to cleanup.c fails because the function being changed doesn't exist in 2.5.5. That change is -void close_all() +void close_all(void) I don't understand what that changes in the context of a buffer overflow attack. On the assumption it does make a difference, you could change log.c like so -void log_open() +void log_open(void) and -void log_close() +void log_close(void) which fixes the two places in 2.5.5-0.1 where there are empty parameter lists in a function prototype. -- Paul Haas [EMAIL PROTECTED] -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
Re: [SECURITY] [DSA 404-1] New rsync packages fix unauthorised remote code execution
The following announcement was made by the Debian security team: Paul Slootman Date: Thu, 4 Dec 2003 17:09:35 +0100 (CET) To: Debian Security Announcements [EMAIL PROTECTED] From: Martin Schulze [EMAIL PROTECTED] Subject: [SECURITY] [DSA 404-1] New rsync packages fix unauthorised remote code execution -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 - -- Debian Security Advisory DSA 404-1 [EMAIL PROTECTED] http://www.debian.org/security/ Martin Schulze December 4th, 2003 http://www.debian.org/security/faq - -- Package: rsync Vulnerability : heap overflow Problem-Type : remote Debian-specific: no CVE ID : CAN-2003-0962 The rsync team has received evidence that a vulnerability in all versions of rsync prior to 2.5.7, a fast remote file copy program, was recently used in combination with a Linux kernel vulnerability to compromise the security of a public rsync server. While this heap overflow vulnerability could not be used by itself to obtain root access on an rsync server, it could be used in combination with the recently announced do_brk() vulnerability in the Linux kernel to produce a full remote compromise. Please note that this vulnerability only affects the use of rsync as an rsync server. To see if you are running a rsync server you should use the command netstat -a -n to see if you are listening on TCP port 873. If you are not listening on TCP port 873 then you are not running an rsync server. For the stable distribution (woody) this problem has been fixed in version 2.5.5-0.2. For the unstable distribution (sid) this problem has been fixed in version 2.5.6-1.1. However, since the Debian infrastructure is not yet fully functional after the recent break-in, packages for the unstable distribution are not able to enter the archive for a while. Hence they were placed in my home directory on the security machine: http://klecker.debian.org/~joey/rsync/ We recommend that you upgrade your rsync package immediately if you are providing remote sync services. If you are running testing and provide remote sync services please use the packages for woody. Upgrade Instructions - wget url will fetch the file for you dpkg -i file.deb will install the referenced file. If you are using the apt-get package manager, use the line for sources.list as given below: apt-get update will update the internal database apt-get upgrade will install corrected packages You may use an automated update by adding the resources from the footer to the proper configuration. Debian GNU/Linux 3.0 alias woody - Source archives: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2.dsc Size/MD5 checksum: 545 466c30b8dac303dc23a4e33bb64710ca http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2.diff.gz Size/MD5 checksum:91526 a81021e1b1b60ae99e3fc95262ca96d6 http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5.orig.tar.gz Size/MD5 checksum: 415156 39d76c62684750842d3884a77c2e5466 Alpha architecture: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2_alpha.deb Size/MD5 checksum: 227344 b885337ced8ec3c902b4ef43d560cff5 ARM architecture: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2_arm.deb Size/MD5 checksum: 206240 4e39539b438128912b4d0f4971134eb4 Intel IA-32 architecture: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2_i386.deb Size/MD5 checksum: 199034 50f61c7b8a009767093e36ba68790a7b Intel IA-64 architecture: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2_ia64.deb Size/MD5 checksum: 255378 886348cd33646fc167da6b1a9cbdc165 HP Precision architecture: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2_hppa.deb Size/MD5 checksum: 213962 6057690f85e14d01072ab6a84ad52996 Motorola 680x0 architecture: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2_m68k.deb Size/MD5 checksum: 189620 d3c784bb621d2c7a66a2bd3fa418fad8 Big endian MIPS architecture: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2_mips.deb Size/MD5 checksum: 216122 f22358818b785d4bdb43cc56e0140f0a Little endian MIPS architecture: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2_mipsel.deb Size/MD5 checksum: 216420 1e40db535e7b1d8340d65f101b2bb60a PowerPC architecture: http://security.debian.org/pool/updates/main/r/rsync/rsync_2.5.5-0.2_powerpc.deb Size/MD5 checksum: 205436 d4bc1decf806f2102f434875ab4aa66e Sun Sparc architecture:
Re: [Linux-ME] daily backup (incremental backup ) - SOLVED
Dear Manoj, Have found out the mistake in my script. One must create directory if he/she wants to move old files to backup directory. In my script I was not creating any new backup-dir(datewise), therefore despite of have -b --backup-dir flags it was not working. This means rsync can only create automatically new direcotry for destination but not backup-dir Am I correct? Bipin --- Manoj Menon [EMAIL PROTECTED] wrote: Hi Bipin, Perhaps this is totally irrelevant, but how do you mount '/mnt/novell' ? ncpfs ? Regards, Manoj.C --- Bipinchandra Ranpura [EMAIL PROTECTED] wrote: I have Novell Netware File server. Which is mounted as /mnt/novell on one of my Linux m/c. I want to take backup of Novell Server to my Linux m/c. I need everyday backup of Novell server to be taken on Linux m/c. I don't want full backup every day but I need an incremental backup. I do not want to delete any old directory or files. I have taken script from rsync examples, and made changes. . But it doesn`t work can someone help me. #directory to backup (source) /mnt/novell # novell server mounted everyday just for backup purpose #directory on which backup back to be taken(destination) BSERVER=/home/bipin/ #sub-directory date wise for everyday's incremental backup??? BACKUPDIR=`date +%Y%m%d` OPTS=--backup --backup-dir=/home/bipin/$BACKUPDIR -a rsync $OPTS $BDIR $BSERVER/current above command creates directory current but doesnot create any sub-directory backup-dir (date wise where only latest updated or newly created files get backedup). Can I get some guidance. Thanking you in advance. Bipin __ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ __ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
Re: rsync / ssh -i
On 4 Dec 2003, Michael [EMAIL PROTECTED] wrote: I know that with ssh I can issue the -i command to use a different identity. Is there anyway to use the -i command with rsync and ssh? Thank you. Use the IdentityFile and Host keywords in your ssh_config: Host suzy-alt-key HostName suzy.foo.org IdentityFile ~/.ssh/id_some_other_dsa -- Martin linux.conf.au -- Adelaide, January 2004 signature.asc Description: Digital signature -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
CVS update: rsyncweb
Date: Thu Dec 4 10:59:33 2003 Author: mbp Update of /data/cvs/rsyncweb In directory dp.samba.org:/tmp/cvs-serv18506 Modified Files: index.html Log Message: Clarify that the problem is with 2.5.6 *and earlier*. Add CVE index. Revisions: index.html 1.17 = 1.18 http://www.samba.org/cgi-bin/cvsweb/rsyncweb/index.html.diff?r1=1.17r2=1.18 ___ rsync-cvs mailing list [EMAIL PROTECTED] http://lists.samba.org/mailman/listinfo/rsync-cvs