Afuse filenames command execution

afuse-filenames-command-execution (43834)

High Risk

Description:

Afuse could allow a local attacker to execute arbitrary commands on the system, caused by improper validation of user-supplied input by filenames prior to a system() call. By sending a specially-crafted request for a file containing a filename from an Afuse registered directory, a local attacker could exploit this vulnerability to inject and execute arbitrary shell commands on the system.

*CVSS:

Base Score:	4.6
Access Vector:	Local
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	3.2
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Uncorroborated

Consequences:

Gain Access

Remedy:

Apply the appropriate patch for your system. See References.

References:

• Afuse Web page: Afuse - An automounter implemented with FUSE.
• Debian Bug report logs - #490921: CVE-2008-2232: privilege escalation.
• BID-30245: Afuse 'afuse.c' Shell Command Injection Vulnerability
• CVE-2008-2232: The expand_template function in afuse.c in afuse 0.2 allows local users to gain privileges via shell metacharacters in a pathname.
• DSA-1611: afuse -- privilege escalation
• SA31086: Afuse Shell Command Injection Vulnerability

Platforms Affected:

• Afuse Afuse 0.2
• Debian Debian Linux 4.0

Reported:

Jul 15, 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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