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| Rule General Information |
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| Release Date: | 2021-10-12 | |
| Rule Name: | Apache HTTP Server 2.4.50 Path Traversal Vulnerability (CVE-2021-42013) | |
| Severity: | ||
| CVE ID: | ||
| Rule Protection Details |
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| Description: | 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. | |
| Impact: | An attacker could exploit this vulnerability to have unspecified effect. | |
| Affected OS: | Windows, Linux, Others | |
| Reference: | http://jvn.jp/en/jp/JVN51106450/index.html http://www.openwall.com/lists/oss-security/2021/10/07/6 http://www.openwall.com/lists/oss-security/2021/10/08/1 http://www.openwall.com/lists/oss-security/2021/10/08/2 |
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| Solutions |
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| There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. |