Apache Struts up to 2.3.16.3 Random Number Generator cross-site request forgery

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Apache Struts up to 2.3.16.3 (Programming Tool Software). This issue affects some unknown functionality of the component Random Number Generator. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity. The summary by CVE is:

Apache Struts 2.0.0 through 2.3.x before 2.3.20 uses predictable <s:token/> values, which allows remote attackers to bypass the CSRF protection mechanism.

The weakness was disclosed 12/08/2014 by Philippe Arteau with Groupe Technologies Desjardins as S2-023 as confirmed security bulletin (Website). The advisory is shared at struts.apache.org. The identification of this vulnerability is CVE-2014-7809 since 10/03/2014. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The advisory points out:

The attacker fetch any given form where a token is present and can predict the next value of the token used to secure form submission.

The vulnerability scanner Nessus provides a plugin with the ID 83294 (MySQL Enterprise Monitor < 2.3.20 Apache Struts Predictable Token XSRF), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r.

Upgrading to version 2.3.20 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published 3 months after the disclosure of the vulnerability. The security bulletin contains the following remark:

Developers should immediately upgrade to Struts 2.3.20 if they use <s:token/> support

The vulnerability is also documented in the databases at X-Force (98963) and Tenable (83294). The entry 74945 is pretty similar.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.3
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 83294
Nessus Name: MySQL Enterprise Monitor < 2.3.20 Apache Struts Predictable Token XSRF
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Struts 2.3.20

Timelineinfo

10/03/2014 🔍
12/08/2014 +66 days 🔍
12/08/2014 +0 days 🔍
12/08/2014 +0 days 🔍
12/09/2014 +1 days 🔍
12/10/2014 +1 days 🔍
02/17/2015 +69 days 🔍
05/08/2015 +80 days 🔍
05/02/2019 +1455 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: S2-023
Researcher: Philippe Arteau
Organization: Groupe Technologies Desjardins
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-7809 (🔍)
X-Force: 98963 - Apache Struts predictable token security bypass, Medium Risk
SecurityTracker: 1031309
SecurityFocus: 71548 - Apache Struts CVE-2014-7809 Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 12/09/2014 09:18
Updated: 05/02/2019 16:24
Changes: 12/09/2014 09:18 (81), 05/02/2019 16:24 (1)
Complete: 🔍

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