Symantec Messaging Gateway up to 10.6.3 Word File access control

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.8	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Symantec Messaging Gateway up to 10.6.3 and classified as critical. This impacts an unknown function of the component Word File Handler. The manipulation leads to access control. This vulnerability is traded as CVE-2017-6324. It is possible to initiate the attack remotely. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Symantec Messaging Gateway up to 10.6.3 and classified as very critical. This issue affects an unknown part of the component Word File Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability.

The bug was discovered 06/21/2017. The weakness was shared 06/21/2017 as SYM17-004 as confirmed security advisory (Website). The advisory is shared at symantec.com. The identification of this vulnerability is CVE-2017-6324 since 02/26/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/29/2020). MITRE ATT&CK project uses the attack technique T1068 for this issue. The advisory points out:

The Symantec Messaging Gateway, when processing a specific email attachment, can allow a malformed or corrupted Word file with a potentially malicious macro through despite the administrator having the ‘disarm’ functionality enabled. This constitutes a ‘bypass’ of the disarm functionality resident to the application.

The vulnerability scanner Nessus provides a plugin with the ID 101158 (Symantec Messaging Gateway 10.x < 10.6.3-266 Multiple Vulnerabilities (SYM17-004)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11840 (Symantec Messaging Gateway Multiple Vulnerabilities (SYM17-004)).

Applying the patch 10.6.3-266 is able to eliminate this problem. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (101158) and SecurityFocus (BID 98889†). The entries VDB-102748 and VDB-102750 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Symantec

Name

Messaging Gateway

Version

License

commercial

Website

Vendor: https://www.symantec.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.0

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Symantec): 7.3
Vendor Vector (Symantec): 🔍

NVD Base Score: 7.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 101158
Nessus Name: Symantec Messaging Gateway 10.x < 10.6.3-266 Multiple Vulnerabilities (SYM17-004)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103501
OpenVAS Name: Symantec Messaging Gateway Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 10.6.3-266

Timelineinfo

02/26/2017 🔍
06/19/2017 +113 days 🔍
06/21/2017 +2 days 🔍
06/21/2017 +0 days 🔍
06/21/2017 +0 days 🔍
06/22/2017 +1 days 🔍
06/26/2017 +4 days 🔍
06/30/2017 +4 days 🔍
12/29/2020 +1278 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: SYM17-004
Researcher: Adam Witt
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6324 (🔍)
GCVE (CVE): GCVE-0-2017-6324
GCVE (VulDB): GCVE-100-102749
SecurityFocus: 98889 - Symantec Messaging Gateway CVE-2017-6324 Security Bypass Vulnerability
SecurityTracker: 1038785

See also: 🔍

Entryinfo

Created: 06/22/2017 19:20
Updated: 12/29/2020 13:28
Changes: 06/22/2017 19:20 (84), 10/19/2019 18:28 (5), 12/29/2020 13:20 (3), 12/29/2020 13:25 (1), 12/29/2020 13:28 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.