Apache Struts up to 2.3.16.1 Class Loader access control

CVSS Meta Temp Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Apache Struts up to 2.3.16.1. It has been classified as critical. Affected is an unknown function of the component Class Loader. The manipulation leads to access control. This vulnerability is uniquely identified as CVE-2014-0112. Moreover, an exploit is present. This vulnerability is considered historic because of its background and reception. It is best practice to apply the suggested workaround.

Detailsinfo

A vulnerability was found in Apache Struts up to 2.3.16.1 (Programming Tool Software). It has been rated as critical. This issue affects an unknown code block of the component Class Loader. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, and integrity. The summary by CVE is:

ParametersInterceptor in Apache Struts before 2.3.16.2 does not properly restrict access to the getClass method, which allows remote attackers to "manipulate" the ClassLoader and execute arbitrary code via a crafted request. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-0094.

The weakness was disclosed 04/24/2014 by Takeshi Terada as Struts up to 2.3.16.1: Zero-Day Exploit Mitigation as confirmed advisory (Website). It is possible to read the advisory at struts.apache.org. The vendor was not involved in the public release. The identification of this vulnerability is CVE-2014-0112 since 12/03/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/15/2024). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. Due to its background and reception, this vulnerability has a historic impact. The advisory points out:

In Struts 2.3.16.1, an issue with ClassLoader manipulation via request parameters was supposed to be resolved. Unfortunately, the correction wasn't sufficient.

A public exploit has been developed in Ruby. The exploit is available at securityfocus.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 73763 (Apache Struts 2 ClassLoader Manipulation Incomplete Fix for Security Bypass), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Denial of Service and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 12939 (Apache Struts ClassLoader Manipulation Security Bypass Vulnerability (S2-020, S2-021)).

It is possible to mitigate the problem by applying the configuration setting param name="excludeParams". A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A security fix release fully addressing this issue is in preparation and will be released as soon as possible. Once the release is available, all Struts 2 users are strongly recommended to update their installations. Until the release is available, all Struts 2 users are strongly recommended to apply [the] following mitigation. (see release)

The vulnerability is also documented in the databases at X-Force (92740), Exploit-DB (33142), Tenable (73763), SecurityFocus (BID 67064†) and Secunia (SA58016†). isc.sans.edu is providing further details. The entries VDB-12781, VDB-13086, VDB-69515 and VDB-74885 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.5
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73763
Nessus Name: Apache Struts 2 ClassLoader Manipulation Incomplete Fix for Security Bypass
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 803838
OpenVAS Name: Apache Struts2 Redirection and Security Bypass Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: struts_code_exec_classloader.rb
MetaSploit Name: Apache Struts ClassLoader Manipulation Remote Code Execution
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Workaround
Status: 🔍

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Exposure Time: 🔍

Config: param name="excludeParams"

Timelineinfo

12/03/2013 🔍
04/24/2014 +142 days 🔍
04/24/2014 +0 days 🔍
04/24/2014 +0 days 🔍
04/24/2014 +0 days 🔍
04/25/2014 +1 days 🔍
04/28/2014 +3 days 🔍
04/29/2014 +1 days 🔍
04/29/2014 +0 days 🔍
12/15/2024 +3883 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: Struts up to 2.3.16.1: Zero-Day Exploit Mitigation
Researcher: Takeshi Terada
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0112 (🔍)
GCVE (CVE): GCVE-0-2014-0112
GCVE (VulDB): GCVE-100-13067

IAVM: 🔍

X-Force: 92740 - Apache Struts ParametersInterceptor denial of service, Medium Risk
SecurityFocus: 67064 - Apache Struts ClassLoader Manipulation Incomplete Fix Security Bypass Vulnerability
Secunia: 58016 - Apache Struts Two Vulnerabilities, Moderately Critical
SecurityTracker: 1030152

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 04/25/2014 12:57
Updated: 12/15/2024 20:07
Changes: 04/25/2014 12:57 (98), 04/30/2019 17:38 (1), 12/15/2024 20:07 (17)
Complete: 🔍
Cache ID: 216:E58:103

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