[ CVE-2020-17530 · Published 11 Dec 2020 ]
Apache Struts Remote Code Execution Vulnerability
Exploited · CISA KEV CVSS 9.8
EPSS 96%Fix available
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03
- EPSS: 96% chance of exploitation in the next 30 days (higher than 100% of CVEs)
- Critical severity: CVSS 9.8
[ Description ]Official description
Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.
CISA: Forced Object-Graph Navigation Language (OGNL) evaluation in Apache Struts, when evaluated on raw user input in tag attributes, can lead to remote code execution.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 3 May 2022): Apply updates per vendor instructions.
- Patch on security.netapp.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on oracle.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on oracle.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on oracle.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on oracle.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on oracle.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ References ]References
- jvn.jp/en/jp/JVN43969166/index.htmlThird Party Advisory
- packetstormsecurity.com/files/160721/Apache-Struts-2-Forced-Multi-OGNL-Evaluation.htmlThird Party AdvisoryVDB Entry
- www.openwall.com/lists/oss-security/2022/04/12/6Mailing ListThird Party Advisory
- cwiki.apache.org/confluence/display/WW/S2-061Vendor Advisory
- security.netapp.com/advisory/ntap-20210115-0005PatchThird Party Advisory
- www.oracle.com//security-alerts/cpujul2021.htmlPatchThird Party Advisory
- www.oracle.com/security-alerts/cpuApr2021.htmlPatchThird Party Advisory
- www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
- www.oracle.com/security-alerts/cpujan2021.htmlPatchThird Party Advisory
- www.oracle.com/security-alerts/cpujan2022.htmlPatchThird Party Advisory
- www.oracle.com/security-alerts/cpuoct2021.htmlPatchThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource