CVE-2007-4727: Buffer Overflow
First published: Mon Sep 10 2007(Updated: )
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."
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/1.4.18 | <1. | 1. |
| Fipsasp Fipscms Light | <=1.4.15 |
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Reference Links
- http://secweb.se/en/advisories/lighttpd-fastcgi-remote-vulnerability/
- http://trac.lighttpd.net/trac/changeset/1986
- http://www.lighttpd.net/assets/2007/9/9/lighttpd_sa_2007_12.txt
- http://secunia.com/advisories/26732
- https://bugzilla.redhat.com/show_bug.cgi?id=284511
- https://issues.rpath.com/browse/RPL-1715
- http://fedoranews.org/updates/FEDORA-2007-213.shtml
- http://www.gentoo.org/security/en/glsa/glsa-200709-16.xml
- http://www.novell.com/linux/security/advisories/2007_20_sr.html
- http://www.securityfocus.com/bid/25622
- http://secunia.com/advisories/26794
- http://secunia.com/advisories/26824
- http://secunia.com/advisories/26997
- http://secunia.com/advisories/27229
- http://securityreason.com/securityalert/3127
- http://www.vupen.com/english/advisories/2007/3110
- https://exchange.xforce.ibmcloud.com/vulnerabilities/36526
- http://www.securityfocus.com/archive/1/479763/100/0/threaded
Frequently Asked Questions
What is the severity of CVE-2007-4727?
CVE-2007-4727 is considered a critical vulnerability as it allows remote attackers to execute arbitrary code.
How do I fix CVE-2007-4727?
To fix CVE-2007-4727, you should upgrade to lighttpd version 1.4.18 or later.
What types of systems are affected by CVE-2007-4727?
CVE-2007-4727 affects lighttpd versions prior to 1.4.18, particularly systems using the mod_fastcgi extension.
Can CVE-2007-4727 be exploited remotely?
Yes, CVE-2007-4727 can be exploited remotely via specially crafted HTTP requests.
What impact does CVE-2007-4727 have on servers?
CVE-2007-4727 can lead to arbitrary code execution, potentially compromising server integrity and security.
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