40404 : IBM AIX crontab Command Line Argument Local Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
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Timeline

Disclosure Date
2007-10-30

Time to Vendor Response
14 days

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2007-4621" target="_blank">CVE</a>)</em> : Buffer overflow in crontab in IBM AIX 5.2 allows local users to gain privileges via long command line arguments.

Classification

Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Private
Disclosure: Vendor Verified

Solution

IBM has released a patch to address this vulnerability. Additionally, it is possible to temporarily work around the flaw by implementing the following workaround: Removing the set-uid bit from the crontab program will protect against exploitation. However, doing so will render the program unusable.

Products

Unknown or Incomplete

References

Security Tracker: 1018871
CVE ID: 2007-4621 (see also: NVD)
Bugtraq ID: 26263
Secunia Advisory ID: 27437
Related OSVDB ID: 40393 40394 40395 40396 40397 40398 40399 40400 40401 40402 40403 40405 40406 40407
VUPEN Advisory: ADV-2007-3669
Vendor Specific News/Changelog Entry: ftp://aix.software.ibm.com/aix/efixes/security/crontab_ifix.tar http://www.ibm.com/support/docview.wss?uid=isg1IZ04832
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2007-10/0433.html
Other Advisory URL: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=612
http://www.ibm.com/support/docview.wss?uid=isg1IZ04832

Credit

Anonymous - iDefense Labs VCP

CVSSv2 Score

CVSSv2 Base Score = 7.2
Source: nvd.nist.gov | Generated: 2007-11-06 | Disagree?

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