Apache Struts Remote Code Execution Vulnerability (CVE-2020-17530)
Severity: critical · Patch status: patched · Since 2021-11-03 · CVE-2020-17530
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. CISA added CVE-2020-17530 to its Known Exploited Vulnerabilities catalog on Nov 3, 2021, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by May 3, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch