Apache Struts up to 2.2.3.0 ${} code injection

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.4	$0-$5k	0.00

A vulnerability classified as very critical has been found in Apache Struts up to 2.2.3.0 (Programming Tool Software). This affects an unknown functionality. The manipulation of the argument ${} with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Apache Struts 2 before 2.3.14.3 allows remote attackers to execute arbitrary OGNL code via a request with a crafted value that contains both "${}" and "%{}" sequences, which causes the OGNL code to be evaluated twice.

The weakness was published 07/16/2013 with Oracle (Website). The advisory is shared at cwiki.apache.org. This vulnerability is uniquely identified as CVE-2013-2135 since 02/19/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/03/2022). MITRE ATT&CK project uses the attack technique T1059 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 66931 (Apache Struts 2 OGNL Expression Handling Double Evaluation Error Remote Command Execution), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. The commercial vulnerability scanner Qualys is able to test this issue with plugin 150163 (Apache Struts Multiple Remote Code Execution Vulnerabilities (S2-015)).

Upgrading to version 2.2.3.1 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 13107.

The vulnerability is also documented in the databases at X-Force (84763) and Tenable (66931). Similar entries are available at 6095, 7810, 8664 and 8665.

Productinfo

Type

Programming Tool Software

Vendor

Apache

Name

Struts

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
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VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
ATT&CK: T1059

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 66931
Nessus Name: Apache Struts 2 OGNL Expression Handling Double Evaluation Error Remote Command Execution
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Struts 2.2.3.1
Suricata ID: 2017277
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Timelineinfo

02/19/2013 🔍
05/29/2013 +99 days 🔍
07/14/2013 +46 days 🔍
07/16/2013 +2 days 🔍
07/16/2013 +0 days 🔍
01/09/2014 +177 days 🔍
03/24/2015 +439 days 🔍
01/03/2022 +2477 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: cwiki.apache.org
Organization: Oracle
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-2135 (🔍)
X-Force: 84763
Vulnerability Center: 40495 - Apache Struts 2 Before 2.3.14.3 Remote Code Execution Vulnerability via Crafted OGNL Expressions - CVE-2013-2135, High
SecurityFocus: 64758 - RETIRED: Oracle January 2014 Critical Patch Update Multiple Vulnerabilities

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Entryinfo

Created: 03/24/2015 15:54
Updated: 01/03/2022 18:41
Changes: 03/24/2015 15:54 (69), 05/05/2017 10:34 (7), 01/03/2022 18:41 (4)
Complete: 🔍