Input validation error in Apache HTTP Server - CVE-2021-30641

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Main Vulnerability Database Vulnerabilities #VU53774

Input validation error in Apache HTTP Server - CVE-2021-30641

Published: June 3, 2021


Vulnerability identifier: #VU53774
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-30641
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Apache Foundation
Affected software:
Apache HTTP Server

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to incorrect parsing of Apache configuration files. An unexpected section could be matched with 'MergeSlashes OFF' option, leading to a potential security issue.


How to mitigate CVE-2021-30641

Install updates from vendor's website.

Sources