Apache Tomcat up to 6.0.35/7.0.27 NIO Connector input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Apache Tomcat up to 6.0.35/7.0.27. This impacts an unknown function of the component NIO Connector. This manipulation causes input validation. The identification of this vulnerability is CVE-2012-2733. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Apache Tomcat up to 6.0.35/7.0.27 (Application Server Software). Affected by this vulnerability is some unknown processing of the component NIO Connector. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

java/org/apache/coyote/http11/InternalNioInputBuffer.java in the HTTP NIO connector in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28 does not properly restrict the request-header size, which allows remote attackers to cause a denial of service (memory consumption) via a large amount of header data.

The weakness was shared 11/16/2012 (Website). The advisory is shared at h20566.www2.hp.com. This vulnerability is known as CVE-2012-2733 since 05/14/2012. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 79982 (GLSA-201412-29 : Apache Tomcat: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185021 (HP-UX Running Apache Multiple Vulnerabilities (HPSBUX02866)).

Upgrading to version 6.0.36 or 7.0.28 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (79806), Tenable (79982), SecurityFocus (BID 56402†), Secunia (SA51371†) and SecurityTracker (ID 1027729†). The entries VDB-6997, VDB-6998, VDB-7073 and VDB-7074 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 79982
Nessus Name: GLSA-201412-29 : Apache Tomcat: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892725
OpenVAS Name: Debian Security Advisory DSA 2725-1 (tomcat6 - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Tomcat 6.0.36/7.0.28

Timelineinfo

05/14/2012 🔍
11/05/2012 +175 days 🔍
11/05/2012 +0 days 🔍
11/06/2012 +1 days 🔍
11/13/2012 +7 days 🔍
11/16/2012 +3 days 🔍
11/16/2012 +0 days 🔍
12/15/2014 +759 days 🔍
03/24/2015 +99 days 🔍
12/20/2021 +2463 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: USN-1637-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-2733 (🔍)
GCVE (CVE): GCVE-0-2012-2733
GCVE (VulDB): GCVE-100-62929

OVAL: 🔍

X-Force: 79806
SecurityFocus: 56402 - Apache Tomcat CVE-2012-2733 Denial of Service Vulnerability
Secunia: 51371
SecurityTracker: 1027729 - Apache Tomcat Header Processing Bug Lets Remote Users Deny Service
Vulnerability Center: 37205 - Apache Tomcat 7.0.0 - 7.0.27, 6.0.0 - 6.0.35 \x27parseHeaders()\x27 Error Allows Remote DoS, High

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/20/2021 01:08
Changes: 03/24/2015 12:22 (73), 05/03/2019 06:48 (9), 12/20/2021 00:55 (3), 12/20/2021 01:08 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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