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Mitigation Instructions for CVE-2019-0211

SUBJECT: CVE-2019-0211 Apache HTTP Server scoreboard RCE Vulnerability

TECH STACK: Apache HTTP Server v. 2.4.17 to 2.4.38

DATE(S) ISSUED: 20220407



In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.


Exploit code for this vulnerability exists and it is actively being exploited by malicious threat actors.


System administrators can patch the flaw by updating their servers to Apache httpd version 2.4.39. Developers, programmers, and system admins that use Apache should also employ the principle of least privilege to prevent threats that may exploit related vulnerabilities.


NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-0211

APACHE: https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2019-0211

APACHE Downloads: https://httpd.apache.org/download.cgi

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