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Apache Software Foundation Apache HTTP Server vulnerabilities

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Published CVEs affecting Apache Software Foundation Apache HTTP Server: 54 record(s), with affected versions and fixes.

CVE-2021-42013 Critical · 9.8 KEV Urgent · 93 Public exploit Ransomware CWE-22 Oct 7, 2021
Apache HTTP Server Path Traversal Vulnerability
It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue only affects Apache 2.4.49 and Apache 2.4.50 and not earlier versions.
CVE-2021-41773 Critical · 9.8 KEV Urgent · 93 Public exploit Ransomware CWE-22 Oct 5, 2021
Apache HTTP Server Path Traversal Vulnerability
A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013.
CVE-2021-40438 Critical · 9.0 KEV Urgent · 83 Public exploit Ransomware CWE-918 Sep 16, 2021
Apache HTTP Server-Side Request Forgery (SSRF)
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.
CVE-2019-0211 High · 7.8 KEV Urgent · 70 Public exploit CWE-416 Apr 8, 2019
Apache HTTP Server Privilege Escalation Vulnerability
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.