A vulnerability, which was classified as critical, was found in Apache Struts up to 2.3.28 (Programming Tool Software). Affected is some unknown processing of the component Double OGNL Evaluation. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Apache Struts 2.x before 2.3.29 allows remote attackers to execute arbitrary code via a "%{}" sequence in a tag attribute, aka forced double OGNL evaluation. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-0785.

The bug was discovered 05/13/2016. The weakness was shared 10/16/2017 (Website). The advisory is shared for download at struts.apache.org. This vulnerability is traded as CVE-2016-4461 since 05/02/2016. The exploitability is told to be easy. It is possible to launch the attack remotely. Required for exploitation is a authentication. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 521 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 2.3.29 eliminates this vulnerability.

Productinfo

Type

• Programming Tool Software

Vendor

• Apache

Name

• Struts

Version

• 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

License

• open-source

CPE 2.3info

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CPE 2.2info

• 🔍
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