Squid < 3.0.STABLE24 / 2.7.STABLE8 / 2.6.STABLE24

medium Nessus Plugin ID 45591

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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 3.0.STABLE24 / 2.7.STABLE8 / 2.6.STABLE24. Such versions de-reference a NULL pointer while handling certain Hypertext Caching Protocol (HTCP) requests.

This mishandling can be abused by a remote attacker to cause a denial of service by sending specially crafted HTCP requests to an affected service.

Note that Nessus has relied only on the version in the proxy server's banner, which is not updated by either of the patches the project has released to address this issue. If one of those has been applied properly and the service restarted, consider this to be a false positive.

Solution

Either upgrade to Squid version 3.0.STABLE24 / 2.7.STABLE8 / 2.6.STABLE24 or later or apply the appropriate patch referenced in the project's advisory above.

Plugin Details

Severity: Medium

ID: 45591

File Name: squid_3_0_24.nasl

Version: 1.12

Type: remote

Family: Firewalls

Published: 4/21/2010

Updated: 7/30/2018

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Vulnerability Information

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

Required KB Items: www/squid, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 2/15/2010

Vulnerability Publication Date: 2/12/2010

Reference Information

CVE: CVE-2010-0639

BID: 38212

CWE: 20

Secunia: 38561, 38570

Detections

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