ClamAV Sigtool file overwrite

clamav-sigtool-file-overwrite (39339)

Medium Risk

Description:

Clam AntiVirus (ClamAV) could allow a local attacker to overwrite arbitrary files, caused by the improper handling of created files by the Sigtool utility. A local attacker could exploit this vulnerability by invoking the Sigtool with the utf16-decode option to overwrite arbitrary files on the vulnerable system.

*CVSS:

Base Score:	2.1
Access Vector:	Local
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	Partial
Availability Impact:	None
Temporal Score:	1.9
Exploitability:	Functional
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

File Manipulation

Remedy:

No remedy available as of February 6, 2010.

References:

• Clam AntiVirus Web site: Clam AntiVirus.
• Full-Disclosure Mailing List, Sun, 30 Dec 2007 01:06:04 +0100: TK53 Advisory #2: Multiple vulnerabilities in ClamAV.
• SECTRACK ID: 1019148: Clam AntiVirus Unsafe File Access Lets Local Users Gain Elevated Privileges

Platforms Affected:

• Clam Anti-Virus ClamAV 0.92

Reported:

Dec 29, 2007

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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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