Apache < 2.0.51 mod_dav DAV LOCK Command Remote DoS

Medium Nessus Network Monitor Plugin ID 2291


The remote host is vulnerable to a Denial of Service (DoS) attack.


The remote host is running a vulnerable version of Apache. It is reported that versions prior 2.0.51 are prone to a remote denial of service issue. An attacker may issue a specific sequence of DAV LOCK commands to crash the process. If Apache is configured to use threads, it may completely crash the Apache process.


Upgrade to Apache 2.0.51 or higher.

Plugin Details

Severity: Medium

ID: 2291

Family: Web Servers

Published: 2004/09/15

Modified: 2016/02/05

Dependencies: 3057

Nessus ID: 14803

Risk Information

Risk Factor: Medium


Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:H/RL:OF/RC:C


Base Score: 5.8

Temporal Score: 5.5


Temporal Vector: CVSS3#E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:apache:http_server:2.0

Reference Information

CVE: CVE-2004-0811, CVE-2004-0809

BID: 11239, 11185