CVE-2017-9805
What it is
The REST Plugin in Apache Struts 2.1.1 through 2.3.x before 2.3.34 and 2.5.x before 2.5.13 uses an XStreamHandler with an instance of XStream for deserialization without any type filtering, which can lead to Remote Code Execution when deserializing XML payloads.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2021-11-03 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2022-05-03 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 99.4% in the next 30 days (EPSS).
- Severity: 8.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Added to CISA KEV
- 2021-11-03
- Exploit probability
- 99.4% · EPSS, next 30 days
- Weakness
- CWE-502 · Unsafe deserialization
- Record status
- Analyzed
Affected
- Apache Struts < 2.3.34
- Apache Struts < 2.5.13
- Cisco Digital Media Manager
- Cisco Hosted Collaboration Solution 10.5\(1\)
- Cisco Hosted Collaboration Solution 11.0\(1\)
- Cisco Hosted Collaboration Solution 11.5\(1\)
- Cisco Hosted Collaboration Solution 11.6\(1\)
- Cisco Media Experience Engine 3.5
Attack profile CVSS 3.1 · 8.1
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2017-9805.md and follow it. Check whether this project is affected by CVE-2017-9805. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
- https://blogs.apache.org/foundation/entry/apache-struts-statement-on-equifax
- https://cwiki.apache.org/confluence/display/WW/S2-052
- https://struts.apache.org/docs/s2-052.html
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
- https://blogs.apache.org/foundation/entry/apache-struts-statement-on-equifax
- https://cwiki.apache.org/confluence/display/WW/S2-052
- https://struts.apache.org/docs/s2-052.html
References
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
- http://www.securityfocus.com/bid/100609
- http://www.securitytracker.com/id/1039263
- https://blogs.apache.org/foundation/entry/apache-struts-statement-on-equifax
- https://bugzilla.redhat.com/show_bug.cgi?id=1488482
- https://cwiki.apache.org/confluence/display/WW/S2-052
- https://lgtm.com/blog/apache_struts_CVE-2017-9805
- https://security.netapp.com/advisory/ntap-20170907-0001/
- https://struts.apache.org/docs/s2-052.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
- https://www.exploit-db.com/exploits/42627/
- https://www.kb.cert.org/vuls/id/112992
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
- http://www.securityfocus.com/bid/100609
- http://www.securitytracker.com/id/1039263
- https://blogs.apache.org/foundation/entry/apache-struts-statement-on-equifax
- https://bugzilla.redhat.com/show_bug.cgi?id=1488482
- https://cwiki.apache.org/confluence/display/WW/S2-052
- https://lgtm.com/blog/apache_struts_CVE-2017-9805
- https://security.netapp.com/advisory/ntap-20170907-0001/
- https://struts.apache.org/docs/s2-052.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
- https://www.exploit-db.com/exploits/42627/
- https://www.kb.cert.org/vuls/id/112992
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9805