arshell vulnerability in arrayd
SGI Security Coordinator
______________________________________________________________________________
SGI Security Advisory
Title: arshell vulnerability in arrayd
Number: 20050701-01-P
Date: July 1, 2005
Reference: SGI BUG 937936, CVE CAN-2005-1859
Fixed in: Patches 10181, 10182 and 10185
______________________________________________________________________________
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______________________________________________________________________________
- -----------------------
- --- Issue Specifics ---
- -----------------------
While investigating arrayd, a vulnerability in arshell was found internally
affecting SGI ProPack 3 with Service Pack 5 and 6, and SGI ProPack 4.
The vulnerability can lead to a root compromise.
SGI has assigned CVE CAN-2005-1859 to this issue:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1859
The vulnerability in arshell was introduced in SGI ProPack 3 with Service
Pack 5 and above. Older Service Packs of SGI ProPack 3 and SGI IRIX are
not vulnerable.
SGI has investigated the issue and recommends the following steps for
resolving this issue. It is HIGHLY RECOMMENDED that these measures
be implemented on ALL vulnerable SGI systems.
- --------------
- --- Impact ---
- --------------
SGI bug 937936 was filed to track this issue:
The arshell command in the Array Service package in SGI ProPack
contains an exploit which allows any user to start a shell as root
on any host in the configured cluster or array.
This patch prevents users from changing from non-root to root when
using the arshell command.
SGI IRIX is not vulnerable. SGI ProPack 3 with Service Pack 5 and above
is vulnerable.
- -
- ----------------
- --- Solution ---
- ----------------
SGI has provided a series of patches for these vulnerabilities
and recommends that all affected operating systems install the
appropriate patch.
OS Version Vulnerable? Patch # Other Actions
- ---------- ----------- ------- -------------
SGI IRIX no
SGI ProPack 3 no
SGI ProPack 3 SP 1 no
SGI ProPack 3 SP 2 no
SGI ProPack 3 SP 3 no
SGI ProPack 3 SP 4 no
SGI ProPack 3 SP 5 yes 10181
SGI ProPack 3 SP 6 yes 10185
SGI ProPack 4 yes 10182
Patches for SGI ProPack can be obtained from http://support.sgi.com/
- -------------
- --- Links ---
- -------------
Patches are available via the web, anonymous FTP and from your SGI
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- -----------------------------------------
- --- SGI Security Information/Contacts ---
- -----------------------------------------
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______________________________________________________________________________
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