En resumen
- CVE-2021-31805 es una vulnerabilidad CRÍTICO (CVSS 9.8) que afecta a org.apache.struts:struts2-core, struts (apache).
- Probabilidad de explotación en los próximos 30 días (EPSS): 85.4%, mayor que el 99.7% de las vulnerabilidades.
- Solución: actualizar a 2.5.30 o posterior.
Description
The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.
NVD description
The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.
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