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>> IBM AIX "swcons" Insecure Permission Privilege Escalation Vulnerability

Title : IBM AIX "swcons" Insecure Permission Privilege Escalation Vulnerability
VUPEN ID : VUPEN/ADV-2008-2490
CVE ID : CVE-2008-4018
CWE ID : CWE-264
Rated as : Moderate Risk 
Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2008-09-04


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in IBM AIX, which could be exploited by local attackers to gain elevated privileges. This issue is caused by insecure permissions being set on the "/usr/sbin/swcons" utility, which could allow a malicious user (member of the "system" group) to execute arbitrary code by creating files owned by root that have insecure permissions.

Affected Products

IBM AIX 5.2
IBM AIX 5.3
IBM AIX 6.1

Solution

Apply fixes :
http://aix.software.ibm.com/aix/efixes/security/swcons_fix.tar
ftp://aix.software.ibm.com/aix/efixes/security/swcons_fix.tar

IBM AIX 5.2.0 - Apply APAR IZ18335
IBM AIX 5.3.0 - Apply APAR IZ18339 (10/29/2008)
IBM AIX 5.3.7 - Apply APAR IZ18338 (10/29/2008)
IBM AIX 5.3.8 - Apply APAR IZ18334 (10/29/2008)
IBM AIX 6.1.0 - Apply APAR IZ18341 (11/19/2008)
IBM AIX 6.1.1 - Apply APAR IZ28943 (11/19/2008)

References

http://www.vupen.com/english/advisories/2008/2490
http://aix.software.ibm.com/aix/efixes/security/swcons_advisory.asc

Credits

Vulnerability reported by the vendor.

ChangeLog

2008-09-04 : Initial release

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