Improper input validation in Apache Struts
CVE-2017-12611
In Apache Struts 2.0.0 through 2.3.33 and 2.5 through 2.5.10.1, using an unintentional expression in a Freemarker tag instead of string literals can lead to a RCE attack.
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: 0.871 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.955 · newest: 0.871 · change: -0.084
Affected products
- Apache Struts — versions 2.0.1, 2.0.2, 2.0.3
- Apache Software Foundation Struts — versions 2.5 - 2.5.10.1, 2.0.0 - 2.3.33
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html (Patch, Third Party Advisory)
- www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-003.txt (Third Party Advisory, Mitigation)
- struts.apache.org/docs/s2-053.html (Exploit, Vendor Advisory)
- www.securityfocus.com/bid/100829 (VDB Entry, Third Party Advisory, vdb-entry)
- kb.netapp.com/support/s/article/ka51A000000CgttQAC/NTAP-20170911-0001 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-12611?
- CVE-2017-12611 is a critical-severity vulnerability in Apache Struts, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2017-09-20.
- How severe is CVE-2017-12611?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-12611 known to be exploited?
- 40 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.