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Mozilla Network Security Services TLS State Machine Weak Encryption Vulnerability (CVE-2015-2721)
2016年6月9日
危険度: : 緊急
概要
Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a "SMACK SKIP-TLS" issue.
トレンドマイクロの対策
Apply associated Trend Micro DPI Rules.
対応方法
Trend Micro Deep Security DPI Rule Number: 1006546