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Last updated: 4/1/2015 10:26:37 AM

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Vulnerability Summary for CVE-2007-4727

Original release date: 09/12/2007
Last revised: 03/07/2011


Buffer overflow in the fcgi_env_add function in mod_proxy_backend_fastcgi.c in the mod_fastcgi extension in lighttpd before 1.4.18 allows remote attackers to overwrite arbitrary CGI variables and execute arbitrary code via an HTTP request with a long content length, as demonstrated by overwriting the SCRIPT_FILENAME variable, aka a "header overflow."


CVSS Severity (version 2.0):
CVSS v2 Base Score: 6.8 (MEDIUM) (AV:N/AC:M/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: BUGTRAQ
Name: 20070917 FLEA-2007-0054-1 lighttpd
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-1715
External Source: MISC
Name: https://bugzilla.redhat.com/show_bug.cgi?id=284511
External Source: SUSE
Name: SUSE-SR:2007:020
External Source: MISC
Name: http://secweb.se/en/advisories/lighttpd-fastcgi-remote-vulnerability/
External Source: BID
Name: 25622
External Source: CONFIRM
Name: http://www.lighttpd.net/assets/2007/9/9/lighttpd_sa_2007_12.txt
External Source: XF
Name: lighttpd-modfastcgi-code-execution(36526)
External Source: FEDORA
Name: FEDORA-2007-2132
External Source: CONFIRM
Name: http://trac.lighttpd.net/trac/changeset/1986
External Source: GENTOO
Name: GLSA-200709-16
External Source: VUPEN
Name: ADV-2007-3110
External Source: SREASON
Name: 3127

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:lighttpd:lighttpd:1.4.15 and previous versions

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

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