Squid < 2.6.STABLE18 Update Reply Processing DoS

High Log Correlation Engine Plugin ID 801042

Synopsis

The remote proxy server is prone to a denial of service attack.

Description

According to its banner, the version of the Squid proxy caching server installed on the remote host is older than 2.6.STABLE17. Such versions reportedly use incorrect bounds checking when processing some cache update replies. A client trusted to use the service may be able to leverage this issue to crash the application, thereby denying service to legitimate users.

Solution

Either upgrade to version 2.6.STABLE18 or higher or patch according to vendor recommendations.

See Also

http://.securityfocus.com/archive/1/484662/30/0/threaded

http://.squid-cache.org/Advisories/SQUID-2007_2.txt

Plugin Details

Severity: High

ID: 801042

File Name: 801042.prm

Family: Web Servers

Nessus ID: 29216

Risk Information

Risk Factor: High

CVSSv2

Base Score: 5

Temporal Score: 3.7

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

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

Reference Information

CVE: CVE-2008-1612, CVE-2007-6239

BID: 28693, 26687