Squid < 2.5.STABLE7 NTLM Authentication DoS

High Nessus Network Monitor Plugin ID 2255

Synopsis

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

Description

The remote server is running a Squid proxy server. This version is reported vulnerable to a remote denial of service in the NTLM authentication routine. If NTLM authentication is enabled, an attacker may deny service to legitimate users by sending malformed NTLMSSP packets.

Solution

Upgrade to Squid version 2.5.STABLE7 or later, or apply the vendor-supplied patch.

See Also

http://www.squid-cache.org/Versions/v2/2.5/bugs

https://exchange.xforce.ibmcloud.com/vulnerabilities/17218

http://www.squid-cache.org/squid/Versions/v2/2.5/bugs/squid-2.5.STABLE6-ntlm_fetch_string.patch

Plugin Details

Severity: High

ID: 2255

Family: Web Servers

Published: 2004/09/04

Modified: 2016/11/23

Dependencies: 3389

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.8

Temporal Score: 5.8

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

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

CVSSv3

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS3#E:U/RL:O/RC:X

Vulnerability Information

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

Patch Publication Date: 2004/06/09

Vulnerability Publication Date: 2004/06/09

Reference Information

CVE: CVE-2004-0832

BID: 11098