==================================================================== CERT-Renater Note d'Information No. 2017/VULN237 _____________________________________________________________________ DATE : 23/08/2017 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Apache Log4j versions prior to 2.8.2. ===================================================================== http://seclists.org/oss-sec/2017/q2/78 ____________________________________________________________________ CVE-2017-5645: Apache Log4j socket receiver deserialization vulnerability Severity: High CVSS Base Score: 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Vendor: The Apache Software Foundation Versions Affected: all versions from 2.0-alpha1 to 2.8.1 Description: When using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code. Mitigation: Java 7+ users should migrate to version 2.8.2 or avoid using the socket server classes. Java 6 users should avoid using the TCP or UDP socket server classes, or they can manually backport the security fix from 2.8.2: Credit: This issue was discovered by Marcio Almeida de Macedo of Red Team at Telstra References: ========================================================== + CERT-RENATER | tel : 01-53-94-20-44 + + 23 - 25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email: cert@support.renater.fr + ==========================================================