Improper input validation in Apache Struts
CVE-2016-3087
Apache Struts 2.3.19 to 2.3.20.2, 2.3.21 to 2.3.24.1, and 2.3.25 to 2.3.28, when Dynamic Method Invocation is enabled, allow remote attackers to execute arbitrary code via vectors related to an ! (exclamation mark) operator to the REST Plugin.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.819 (99.6th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.809 · newest: 0.819 · change: +0.010
Affected products
- Apache Struts — versions 2.3.20, 2.3.20.1, 2.3.24
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1036017 (vdb-entry)
- www.exploit-db.com/exploits/39919/ (exploit)
- struts.apache.org/docs/s2-033.html (Vendor Advisory)
- www-01.ibm.com/support/docview.wss
- www.securityfocus.com/bid/90960 (vdb-entry)
Frequently asked questions
- What is CVE-2016-3087?
- CVE-2016-3087 is a critical-severity vulnerability in Apache Struts, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2016-06-07.
- How severe is CVE-2016-3087?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-3087 known to be exploited?
- 27 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.