Apache Tomcat up to 4.1.12 mod_jk Transfer-Encoding memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

A vulnerability was found in Apache Tomcat up to 4.1.12 (Application Server Software). It has been classified as critical. Affected is some unknown processing of the component mod_jk. The manipulation of the argument Transfer-Encoding with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. CVE summarizes:

Tomcat 4.0 through 4.1.12, using mod_jk 1.2.1 module on Apache 1.3 through 1.3.27, allows remote attackers to cause a denial of service (desynchronized communications) via an HTTP GET request with a Transfer-Encoding chunked field with invalid values.

The weakness was shared 12/31/2002 with Qualys (Website). The advisory is available at securityfocus.com. This vulnerability is traded as CVE-2002-2272 since 10/17/2007. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

A public exploit has been developed in Perl. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 11519 (Apache Tomcat mod_jk Invalid Transfer-Encoding Chunked Field DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (10771) and Tenable (11519).

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

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Nessus ID: 11519
Nessus Name: Apache Tomcat mod_jk Invalid Transfer-Encoding Chunked Field DoS
Nessus File: 🔍
Nessus Risk: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/04/2002 🔍
12/04/2002 +0 days 🔍
12/31/2002 +27 days 🔍
12/31/2002 +0 days 🔍
04/04/2003 +94 days 🔍
08/19/2003 +137 days 🔍
10/17/2007 +1520 days 🔍
08/06/2014 +2485 days 🔍
05/11/2019 +1739 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: securityfocus.com⛔
Organization: Qualys
Status: Not defined

CVE: CVE-2002-2272 (🔍)
X-Force: 10771
Vulnerability Center: 1719 - DoS in Apache HTTP Server with Tomcat and mod_jk via Chunked Encoding HTTP Requests, Medium
SecurityFocus: 6320 - Apache/Tomcat Mod_JK Chunked Encoding Denial Of Service Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/06/2014 18:31
Updated: 05/11/2019 16:51
Changes: 08/06/2014 18:31 (64), 05/11/2019 16:51 (8)
Complete: 🔍

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