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Apache HTTPD: mod_proxy_ajp remote DoS (CVE-2012-4557)

Severity CVSS Published Added Modified
5 (AV:N/AC:L/Au:N/C:N/I:N/A:P) November 02, 2012 November 02, 2012 December 12, 2013


The affected asset is vulnerable to this vulnerability ONLY if it is running one of the following modules: mod_proxy_ajp. Review your web server configuration for validation. A flaw was found when mod_proxy_ajp connects to a backend server that takes too long to respond. Given a specific configuration, a remote attacker could send certain requests, putting a backend server into an error state until the retry timeout expired. This could lead to a temporary denial of service.

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