#VU11279 Security restrictions bypass in Apache HTTP Server

Published: 2018-03-27 | Updated: 2018-07-14

Vulnerability identifier: #VU11279

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1312


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache HTTP Server
Server applications / Web servers

Vendor: Apache Foundation

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists in Apache HTTPD mod_auth_digest due to improper generation of HTTP Digest authentication nonce. A remote attacker can replay HTTP requests across the cluster without detection by the target server(s) and bypass replay protection.

Update to version 2.4.32.

Vulnerable software versions

Apache HTTP Server: 2.4.1 - 2.4.29

External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability