Squid mkdir-only PUT Request Remote DoS

Medium Nessus Plugin ID 10768


The remote host has an application that is affected by a denial of service vulnerability.


A problem exists in the way the remote Squid proxy server handles a special 'mkdir-only' PUT request, and causes denial of service to the proxy server.

An attacker may use this flaw to prevent your LAN users from accessing the web.


Apply the vendor released patch, for squid it is located here: www.squid-cache.org. You can also protect yourself by enabling access lists on your proxy.

*** Note that Nessus solely relied on the version number of the remote
*** proxy to issue this warning

Plugin Details

Severity: Medium

ID: 10768

File Name: squid_dos.nasl

Version: $Revision: 1.26 $

Type: remote

Family: Firewalls

Published: 2001/09/26

Modified: 2011/09/16

Dependencies: 10195, 17975

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.3

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

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

Vulnerability Information

CPE: cpe:/a:squid-cache:squid

Exploit Available: true

Exploit Ease: No exploit is required

Vulnerability Publication Date: 2001/09/21

Reference Information

CVE: CVE-2001-0843

BID: 3354

OSVDB: 639