IBM AIX setuid root iostat buffer overflow

ibm-aix-setuidroot-iostat-bo (42579)

High Risk

Description:

IBM AIX is vulnerable to a buffer overflow, caused by improper bounds checking by the setuid root iostat command. By sending a specially-crafted request using certain environment variables, a local attacker could overflow a buffer and execute arbitrary code on the system with root privileges or cause the application to stop responding.

*CVSS:

Base Score:	7.2
Access Vector:	Local
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete
Temporal Score:	5.3
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Privileges

Remedy:

Refer to IBM SECURITY ADVISORY, Wed May 21 11:20:56 CDT 2008 for patch, upgrade or suggested workaround information. See References.

References:

• IBM SECURITY ADVISORY, Wed May 21 11:20:56 CDT 2008: AIX iostat environment variable error.
• BID-29325: IBM AIX 'iostat' Command Local Privilege Escalation Vulnerability
• CVE-2008-2515: Unspecified vulnerability in iostat in IBM AIX 5.2, 5.3, and 6.1 allows local users to gain privileges via unknown vectors related to an environment variable handling error.
• SA30349: IBM AIX Multiple Vulnerabilities
• SECTRACK ID: 1020085: IBM AIX Input Validation Flaw in iostat Command Lets Local Users Gain Root Privileges
• VUPEN/ADV-2008-1626: IBM AIX Multiple Command Local Privilege Escalation Vulnerabilities

Platforms Affected:

• IBM AIX 5.2
• IBM AIX 5.3
• IBM AIX 6.1

Reported:

May 21, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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