Apache < 2.0.51 mod_dav DAV LOCK Command Remote DoS

Medium Log Correlation Engine Plugin ID 800565


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: 800565

File Name: 800565.prm

Family: Web Servers

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

Reference Information

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

BID: 11239, 11185