Debian Security Advisory
DSA-2991-1 modsecurity-apache -- security update
- Date Reported:
- 27 Jul 2014
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2013-5705.
- More information:
Martin Holst Swende discovered a flaw in the way chunked requests are handled in ModSecurity, an Apache module whose purpose is to tighten the Web application security. A remote attacker could use this flaw to bypass intended mod_security restrictions by using chunked transfer coding with a capitalized Chunked value in the Transfer-Encoding HTTP header, allowing to send requests containing content that should have been removed by mod_security.
For the stable distribution (wheezy), this problem has been fixed in version 2.6.6-6+deb7u2.
For the testing distribution (jessie), this problem has been fixed in version 2.7.7-1.
For the unstable distribution (sid), this problem has been fixed in version 2.7.7-1.
We recommend that you upgrade your modsecurity-apache packages.