oss-sec mailing list archives
Re: CVE id request: GNU libc: NIS shadow password leakage
From: Josh Bressers <bressers () redhat com>
Date: Fri, 8 Jan 2010 17:11:50 -0500 (EST)
----- "Aurelien Jarno" <aurelien () aurel32 net> wrote:
Hi oss-sec, Christoph Pleger has reported through the Debian bug tracker [1] that non-priviledged users can read NIS shadow password entries simply using getpwnam() when nscd is in use. The issue has already been reported upstream [2], and a proposed patch is available on [3]. It seems that all GNU libc versions are affected, including derivatives like EGLIBC. Could we please get a CVE id for this issue? Thanks, Aurelien [1] http://bugs.debian.org/560333 [2] http://sourceware.org/bugzilla/show_bug.cgi?id=11134 [3] http://svn.debian.org/viewsvn/pkg-glibc/glibc-package/trunk/debian/patches/any/submitted-nis-shadow.diff?revision=4062&view=markup
I may be missing something here, or perhaps I'm not remembering correctly, but NIS basically doesn't have any security in this respect. This bug implies that a user has some sort of access to the NIS client, but the NIS server would happily hand out the same data if the malicious user asked for it (not using glibc let's say). While this may be a glibc bug (I doubt it, as it would just be a false sense of security), I this this is a non issue. If someone who knows more about NIS could chime in I would appreciate it, it's been a very long time since I've even thought about NIS honestly. I may be very mistaken. -- JB
Current thread:
- CVE id request: GNU libc: NIS shadow password leakage Aurelien Jarno (Jan 07)
- Re: CVE id request: GNU libc: NIS shadow password leakage Josh Bressers (Jan 08)
- Re: CVE id request: GNU libc: NIS shadow password leakage Christoph Pleger (Jan 08)
- Re: CVE id request: GNU libc: NIS shadow password leakage Tomas Hoger (Jan 11)
- Re: CVE id request: GNU libc: NIS shadow password leakage Christoph Pleger (Jan 11)
- Re: CVE id request: GNU libc: NIS shadow password leakage Josh Bressers (Jan 11)
- Re: CVE id request: GNU libc: NIS shadow password leakage Christoph Pleger (Jan 08)
- Re: CVE id request: GNU libc: NIS shadow password leakage Josh Bressers (Jan 08)