ZDI-07-008: Apache Tomcat JK Web Server Connector Long URL Stack
March 2, 2007
-- CVE ID:
-- Affected Vendor:
-- Affected Products:
Tomcat JK Web Server Connector 1.2.19
Tomcat JK Web Server Connector 1.2.20
-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since February 26, 2007 by Digital Vaccine protection
filter ID 5152. For further product information on the TippingPoint IPS:
-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Apache Tomcat JK Web Server Connector.
Authentication is not required to exploit this vulnerability.
The specific flaw exists in the URI handler for the mod_jk.so library,
map_uri_to_worker(), defined in native/common/jk_uri_worker_map.c. When
parsing a long URL request, the URI worker map routine performs an
unsafe memory copy. This results in a stack overflow condition which
can be leveraged to execute arbitrary code.
-- Vendor Response:
Apache has issued an update to correct this vulnerability. More details
can be found at:
-- Disclosure Timeline:
2007.02.16 - Vulnerability reported to vendor
2007.02.26 - Digital Vaccine released to TippingPoint customers
2007.03.02 - Coordinated public release of advisory
This vulnerability was discovered by an anonymous researcher.
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