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.
9.6	$0-$5k	0.00

A vulnerability classified as very critical has been found in Apache Struts2 up to 2.3.28/2.5.0 (Programming Tool Software). This affects an unknown code of the component Action Name Cleanup. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Apache Struts 2 before 2.3.29 and 2.5.x before 2.5.1 allow attackers to have unspecified impact via vectors related to improper action name clean up.

The weakness was presented 10/03/2016 by Alvaro Munoz (Website). The advisory is shared at www-01.ibm.com. This vulnerability is uniquely identified as CVE-2016-4436. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/21/2022).

The vulnerability scanner Nessus provides a plugin with the ID 91812 (Apache Struts 2.x < 2.3.29 Multiple Vulnerabilities (S2-035 - S2-041)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370489 (Apache Struts Security Bypass Vulnerability (S2-035)).

Upgrading to version 2.3.29 or 2.5.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (91812). See 81371, 88604, 88605 and 88606 for similar entries.

Productinfo

Type

• Programming Tool Software

Vendor

• Apache

Name

• Struts2

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 2.3.5
• 2.3.6
• 2.3.7
• 2.3.8
• 2.3.9
• 2.3.10
• 2.3.11
• 2.3.12
• 2.3.13
• 2.3.14
• 2.3.15
• 2.3.16
• 2.3.17
• 2.3.18
• 2.3.19
• 2.3.20
• 2.3.21
• 2.3.22
• 2.3.23
• 2.3.24
• 2.3.25
• 2.3.26
• 2.3.27
• 2.3.28
• 2.4
• 2.5

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 91812
Nessus Name: Apache Struts 2.x < 2.3.29 Multiple Vulnerabilities (S2-035 - S2-041)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 860299
OpenVAS Name: Apache Struts Unspecified Vulnerability Nov16 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Struts2 2.3.29/2.5.1

Timelineinfo

05/02/2016 🔍
06/14/2016 +43 days 🔍
06/17/2016 +3 days 🔍
06/24/2016 +7 days 🔍
10/03/2016 +101 days 🔍
10/03/2016 +0 days 🔍
10/04/2016 +1 days 🔍
09/21/2022 +2178 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: www-01.ibm.com
Researcher: Alvaro Munoz
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4436 (🔍)
SecurityFocus: 91280 - Apache Struts CVE-2016-4436 Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 10/04/2016 10:29
Updated: 09/21/2022 17:36
Changes: 10/04/2016 10:29 (66), 04/30/2019 14:45 (13), 09/21/2022 17:36 (3)
Complete: 🔍

Discussion

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