lighttpd mod_fastcgi code execution
| lighttpd-modfastcgi-code-execution (36526) |  High Risk |
Description:
lighttpd could allow a remote attacker to execute arbitrary code on the system, caused by a header overflow in the mod_fastcgi extension. By sending a specially-crafted request with an overly large contentLength value, an attacker could exploit this vulnerability to execute arbitrary code on the system.
Platforms Affected:
- Debian, Debian Linux 4.0
- Gentoo, Linux
- lighttpd, lighttpd 1.4.17
- SuSE, SuSE Linux
Remedy:
Upgrade to the latest version of Lighttpd (1.4.18 or later), available from the Lighttpd Web site. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- lighttpd Web site, lighttpd fly light at http://www.lighttpd.net/.
- Secweb Web site, Lighttpd FastCGI Remote Vulnerability at http://secweb.se/en/advisories/lighttpd-fastcgi-remote-vulnerability/.
- BID-25622: Lighttpd Mod_FastCGI Request Headers Remote Header Overflow Vulnerability
- CVE-2007-4727: 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.
- DSA-1362: lighttpd -- several vulnerabilities
- GLSA-200709-16: Lighttpd: Buffer overflow
- GLSA-200710-02: PHP: Multiple vulnerabilities
- SA26732: lighttpd mod_fastcgi PHP Header Overflow
- SUSE-SR:2007:020: SUSE Security Summary Report
- VUPEN/ADV-2007-3110: Lighttpd mod_fastcgi Headers Handling Remote Code Execution Vulnerability
Reported:
Sep 09, 2007
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