lighttpd mod_userdir information disclosure

lighttpd-moduserdir-information-disclosure (41173)

Low Risk

Description:

lighttpd could allow a remote attacker to obtain sensitive information, caused by an error in mod_userdir. A default of $HOME is used when userdir.path is not set. An attacker could exploit this vulnerability via the ~nobody directory to read arbitrary files on the system.

*CVSS:

Base Score:	4.3
Access Vector:	Network
Access Complexity:	Medium
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	None
Availability Impact:	None
Temporal Score:	3.9
Exploitability:	High
Remediation Level:	Temporary-Fix
Report Confidence:	Confirmed

Consequences:

Obtain Information

Remedy:

Refer to LIGHTTPD Web site for patch, upgrade or suggested workaround information. See References.

References:

• LIGHTTPD Web site: Changeset 2120.
• LIGHTTPD Web site: Ticket #1587: Ticket #1587 (closed defect: fixed).
• BID-28226: Lighttpd mod_userdir Information Disclosure Vulnerability
• CVE-2008-1270: mod_userdir in lighttpd 1.4.18 and earlier, when userdir.path is not set, uses a default of $HOME, which might allow remote attackers to read arbitrary files, as demonstrated by accessing the ~nobody directory.
• DSA-1521: lighttpd -- file disclosure
• GLSA-200804-08: lighttpd: Multiple vulnerabilities
• SUSE-SR:2008:008: SUSE Security Summary Advisory
• VUPEN/ADV-2008-0885: Lighttpd mod_userdir Module Information Disclosure Vulnerability

Platforms Affected:

• Debian Debian Linux 4.0
• Gentoo Linux
• lighttpd lighttpd 1.4.18

Reported:

Mar 10, 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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