5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
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.
CPE | Name | Operator | Version |
---|---|---|---|
modsecurity-apache | eq | 2.6.6-6+deb7u1 | |
modsecurity-apache | eq | 2.6.6-6 |