Improper input validation in Apache Struts
CVE-2016-4438
The REST plugin in Apache Struts 2 2.3.19 through 2.3.28.1 allows remote attackers to execute arbitrary code via a crafted expression.
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: 0.167 (97.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.167 · newest: 0.167 · change: 0.000
Affected products
- Apache Struts — versions 2.3.20, 2.3.20.1, 2.3.20.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (VDB Entry, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/91275 (Third Party Advisory, vdb-entry)
- struts.apache.org/docs/s2-037.html (Vendor Advisory)
- jvndb.jvn.jp/jvndb/JVNDB-2016-000110 (VDB Entry, Vendor Advisory, third-party-advisory)
- www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- jvn.jp/en/jp/JVN07710476/index.html (Vendor Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2016-4438?
- CVE-2016-4438 is a critical-severity vulnerability in Apache Struts, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2016-07-04.
- How severe is CVE-2016-4438?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-4438 known to be exploited?
- 18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.