CVE-2016-8745
Publiée le 2017-08-10 · Dernière modification le 2026-06-17
Les serveurs Apache Tomcat utilisant le connecteur HTTP NIO sont affectés par un bug qui peut amener le serveur à confondre différentes requêtes d'utilisateurs. Un attaquant non authentifié disposant d'un accès réseau peut exploiter cette faille pour divulguer des données sensibles d'autres utilisateurs, telles que des identifiants de session ou le contenu du corps de leurs réponses. Ce problème est relativement facile à déclencher car il ne nécessite aucun privilège spécial ni interaction de la part de l'utilisateur.
DÉTAIL DU VECTEUR CVSS
RÉFÉRENCES
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
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Description officielle du NVD (en anglais)
A bug in the error handling of the send file code for the NIO HTTP connector in Apache Tomcat 9.0.0.M1 to 9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not not limited to, session ID and the response body. The bug was first noticed in 8.5.x onwards where it appears the refactoring of the Connector code for 8.5.x onwards made it more likely that the bug was observed. Initially it was thought that the 8.5.x refactoring introduced the bug but further investigation has shown that the bug is present in all currently supported Tomcat versions.