CVE-2017-9805
Apache Struts Deserialization of Untrusted Data Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.40% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 6 September 2017
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-502
- Affected
- apache/struts · cisco/digital media manager · cisco/hosted collaboration solution · cisco/media experience engine · cisco/network performance analysis · cisco/video distribution suite for internet streaming · netapp/oncommand balance
- Source
- security@apache.org
EPSS 99.4% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-9805
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/100609Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039263Broken Link, Third Party Advisory, VDB Entry
- https://blogs.apache.org/foundation/entry/apache-struts-statement-on-equifaxVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1488482Issue Tracking, Third Party Advisory, VDB Entry
- https://cwiki.apache.org/confluence/display/WW/S2-052Mitigation, Vendor Advisory
- https://lgtm.com/blog/apache_struts_CVE-2017-9805Broken Link
- https://security.netapp.com/advisory/ntap-20170907-0001/Third Party Advisory
- https://struts.apache.org/docs/s2-052.htmlMitigation, Vendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2Third Party Advisory
- https://www.exploit-db.com/exploits/42627/Exploit, Third Party Advisory, VDB Entry
- https://www.kb.cert.org/vuls/id/112992Third Party Advisory, US Government Resource
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/100609Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039263Broken Link, Third Party Advisory, VDB Entry
- https://blogs.apache.org/foundation/entry/apache-struts-statement-on-equifaxVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1488482Issue Tracking, Third Party Advisory, VDB Entry
- https://cwiki.apache.org/confluence/display/WW/S2-052Mitigation, Vendor Advisory
- https://lgtm.com/blog/apache_struts_CVE-2017-9805Broken Link
- https://security.netapp.com/advisory/ntap-20170907-0001/Third Party Advisory
- https://struts.apache.org/docs/s2-052.htmlMitigation, Vendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2Third Party Advisory
- https://www.exploit-db.com/exploits/42627/Exploit, Third Party Advisory, VDB Entry
- https://www.kb.cert.org/vuls/id/112992Third Party Advisory, US Government Resource
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9805US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.