Detections
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GLSA-200703-01 : Snort: Remote execution of arbitrary code

critical Nessus Plugin ID 24749

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200703-01 (Snort: Remote execution of arbitrary code)

 The Snort DCE/RPC preprocessor does not properly reassemble certain types of fragmented SMB and DCE/RPC packets.
 Impact :

 A remote attacker could send specially crafted fragmented SMB or DCE/RPC packets, without the need to finish the TCP handshake, that would trigger a stack-based buffer overflow while being reassembled.
 This could lead to the execution of arbitrary code with the permissions of the user running the Snort preprocessor.
 Workaround :

 Disable the DCE/RPC processor by commenting the 'preprocessor dcerpc' section in /etc/snort/snort.conf .

Solution

All Snort users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=net-analyzer/snort-2.6.1.3'

See Also

https://security.gentoo.org/glsa/200703-01

Plugin Details

Severity: Critical

ID: 24749

File Name: gentoo_GLSA-200703-01.nasl

Version: 1.21

Type: local

Published: 3/2/2007

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:snort, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/23/2007

Vulnerability Publication Date: 2/17/2007

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Snort 2 DCE/RPC Preprocessor Buffer Overflow)

Reference Information

CVE: CVE-2006-5276

GLSA: 200703-01