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Symfony 'attemptAuthentication' Function Denial Of Service Vulnerability (CVE-2016-4423)
2016年9月29日
危険度: : 中
概要
The attemptAuthentication function in Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php in Symfony before 2.3.41, 2.7.x before 2.7.13, 2.8.x before 2.8.6, and 3.0.x before 3.0.6 does not limit the length of a username stored in a session, which allows remote attackers to cause a denial of service (session storage consumption) via a series of authentication attempts with long, non-existent usernames.
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: 1007914