Permissions, Privileges, and Access Controls in Apache HTTP Server - CVE-2015-3185

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Main Vulnerability Database Vulnerabilities #VU32392

Permissions, Privileges, and Access Controls in Apache HTTP Server - CVE-2015-3185

Published: July 21, 2015 / Updated: July 28, 2020


Vulnerability identifier: #VU32392
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-3185
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The ap_some_auth_required function in server/request.c in the Apache HTTP Server 2.4.x before 2.4.14 does not consider that a Require directive may be associated with an authorization setting rather than an authentication setting, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging the presence of a module that relies on the 2.2 API behavior.


Affected software

Apache HTTP Server
apache2 (Alpine package)

How to mitigate CVE-2015-3185

Install update from vendor's website.

Apache HTTP Server - update to 2.4.14
apache2 (Alpine package) - update to 2.4.16-r0

External References

Related Security Bulletins