FreeBSD : squid -- buffer overflow in WCCP recvfrom() call (23fb5a04-722b-11d9-9e1e-c296ac722cb3)

high Nessus Plugin ID 18872

Synopsis

The remote FreeBSD host is missing a security-related update.

Description

According to the Squid Proxy Cache Security Update Advisory SQUID-2005:3,

The WCCP recvfrom() call accepts more data than will fit in the allocated buffer. An attacker may send a larger-than-normal WCCP message to Squid and overflow this buffer.

Severity :

The bug is important because it allows remote attackers to crash Squid, causing a disription in service. However, the bug is exploitable only if you have configured Squid to send WCCP messages to, and expect WCCP replies from, a router.

Sites that do not use WCCP are not vulnerable.

Note that while the default configuration of the FreeBSD squid port enables WCCP support in general, the default configuration supplied does not actually configure squid to send and receive WCCP messages.

Solution

Update the affected package.

Plugin Details

Severity: High

ID: 18872

File Name: freebsd_pkg_23fb5a04722b11d99e1ec296ac722cb3.nasl

Version: 1.18

Type: local

Family: FreeBSD Local Security Checks

Published: 7/13/2005

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:squid, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 1/28/2005

Vulnerability Publication Date: 1/28/2005

Reference Information

CVE: CVE-2005-0211

CERT: 886006

Detections

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