Fiche vulnérabilité
CVE-2021-31805 : faille critique Apache Software Foundation Apache Struts (CVSS 9.8)
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.
En bref
- Sévérité
- Critique (CVSS 9.8)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 12 avr. 2022
- Dernière mise à jour
- 3 août 2024
Produits concernés
- Apache Software Foundation Apache Struts
Correctif et mesures
Avoid using forced OGNL evaluation on untrusted user input, and/or upgrade to Struts 2.5.30 which checks if expression evaluation won’t lead to the double evaluation. Please read our Security Bulletin S2-062 for more details.