Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 100.0%; technical severity is CVSS 9.8.
The Jakarta Multipart parser in Apache Struts 2 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 has incorrect exception handling and error-message generation during file-upload attempts, which allows remote attackers to execute arbitrary commands via a crafted Content-Type, Content-Disposition, or Content-Length HTTP header, as exploited in the wild in March 2017 with a Content-Type header containing a #cmd= string.
Who should care
- Teams operating Struts, Clearpass Policy Manager, Server Automation +6 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Struts, Clearpass Policy Manager, Server Automation +6 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-755
- Affected versions
- Apache Struts (Start Including: 2.5.0, End Excluding: 2.5.10.1); Arubanetworks Clearpass Policy Manager (End Excluding: 6.6.5); Hp Server Automation (Version: 10.5.0); Ibm Storwize V3500 Firmware (Version: 7.8.1.0); Ibm Storwize V5000 Firmware (Version: 7.8.1.0); Ibm Storwize V7000 Firmware (Version: 7.8.1.0); Lenovo Storage V5030 Firmware (Version: 7.8.1.0); Netapp Oncommand Balance (Version: -)
- Published
- 11 March 2017
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 100.0%
- Signal calculated at 88
External references
- Government advisory from www.cisa.gov
- Exploit information from blog.talosintelligence.com
- Exploit information from blog.trendmicro.com
- Third-party advisory from www.arubanetworks.com
- Third-party advisory from www.eweek.com
- Third-party advisory from www.securityfocus.com
- Third-party advisory from www.securitytracker.com
- Exploit information from arstechnica.com
- Vendor advisory from cwiki.apache.org
- Vendor advisory from cwiki.apache.org
- Exploit information from exploit-db.com
- Exploit information from github.com