Symantec Web Gateway up to 5.1.0 Command etc/sudoers access control

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

A vulnerability was found in Symantec Web Gateway up to 5.1.0 (Firewall Software). It has been declared as critical. This vulnerability affects an unknown part of the file etc/sudoers of the component Command Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The management console on the Symantec Web Gateway (SWG) appliance before 5.1.1 has an incorrect sudoers file, which allows local users to bypass intended access restrictions via a command.

The bug was discovered 12/18/2012. The weakness was shared 07/25/2013 by Wolfgang Ettlingers with SEC Consult Unternehmensberatung GmbH as confirmed mailinglist post (Bugtraq). The advisory is available at seclists.org. The vendor cooperated in the coordination of the public release. This vulnerability was named CVE-2013-4672 since 06/24/2013. The exploitation appears to be easy. The attack needs to be done within the local network. Additional levels of successful authentication are needed for exploitation. Technical details and also a public exploit are known. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

A public exploit has been developed by SEC Consult and been published 1 days after the advisory. It is possible to download the exploit at seclists.org. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 219 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 69179 (Symantec Web Gateway < 5.1.1 Multiple Vulnerabilities (SYM13-008)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. The commercial vulnerability scanner Qualys is able to test this issue with plugin 12714 (Symantec Web Gateway Multiple Vulnerabilities (SYM13-008)).

Upgrading to version 5.1.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (69179) and Exploit-DB (27136). The entries 9752, 9753, 9755 and 9756 are related to this item.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.8
VulDB Temp Score: 6.1
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CVSSv2info

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Exploitinginfo

Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: No
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: SEC Consult
Download: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 69179
Nessus Name: Symantec Web Gateway < 5.1.1 Multiple Vulnerabilities (SYM13-008)
Nessus File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Upgrade: Web Gateway 5.1.1

Timelineinfo

12/18/2012 🔍
06/24/2013 +188 days 🔍
07/17/2013 +23 days 🔍
07/25/2013 +8 days 🔍
07/25/2013 +0 days 🔍
07/26/2013 +1 days 🔍
07/26/2013 +0 days 🔍
07/27/2013 +1 days 🔍
07/29/2013 +2 days 🔍
08/01/2013 +3 days 🔍
08/01/2013 +0 days 🔍
08/04/2013 +3 days 🔍
05/20/2021 +2846 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: seclists.org
Researcher: Wolfgang Ettlingers
Organization: SEC Consult Unternehmensberatung GmbH
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-4672 (🔍)
IAVM: 🔍

Vulnerability Center: 40818 - Symantec Web Gateway Before 5.1.1 Management Console Remote Privilege Escalation Vulnerability due to Misconfigured Sudoers File, High
SecurityFocus: 61104 - Symantec Web Gateway CVE-2013-4672 Remote Command Execution Vulnerability
Secunia: 54294 - Symantec Web Gateway Multiple Vulnerabilities, Moderately Critical
OSVDB: 95695

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/29/2013 16:34
Updated: 05/20/2021 15:40
Changes: 07/29/2013 16:34 (90), 05/07/2017 11:36 (3), 05/20/2021 15:40 (3)
Complete: 🔍
Committer:

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