Symantec Messaging Gateway up to 10.6.3 access control

CVSS Meta Temp Score
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CTI Interest Score
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8.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Symantec Messaging Gateway up to 10.6.3. This affects an unknown function. Executing a manipulation can lead to access control. This vulnerability appears as CVE-2017-6326. The attacker needs to be present on the local network. In addition, an exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in Symantec Messaging Gateway up to 10.6.3 and classified as critical. This vulnerability affects some unknown functionality. 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 Symantec Messaging Gateway can encounter an issue of remote code execution, which describes a situation whereby an individual may obtain the ability to execute commands remotely on a target machine or in a target process.

The bug was discovered 06/21/2017. The weakness was presented 06/21/2017 as SYM17-004 as confirmed security advisory (Website). The advisory is shared for download at symantec.com. This vulnerability was named CVE-2017-6326 since 02/26/2017. The exploitation appears to be difficult. The attack can only be initiated within the local network. Additional levels of successful authentication are necessary for exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068. The advisory points out:

The Symantec Messaging Gateway can encounter an issue of remote code execution, which describes a situation whereby an individual may obtain the ability to execute commands remotely on a target machine or in a target process.

It is possible to download the exploit at exploit-db.com. It is declared as highly functional. As 0-day the estimated underground price was around $5k-$25k. 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 Exploit-DB (42251), Tenable (101158) and SecurityFocus (BID 98893†). See VDB-102749 and VDB-102750 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.3

VulDB Base Score: 7.6
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Symantec): 7.6
Vendor Vector (Symantec): 🔍

NVD Base Score: 10.0
NVD Vector: 🔍

CVSSv2info

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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: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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: 🔍

MetaSploit ID: symantec_messaging_gateway_exec.rb
MetaSploit Name: Symantec Messaging Gateway Remote Code Execution
MetaSploit File: 🔍

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 🔍
11/30/2025 +3075 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: SYM17-004
Researcher: Mehmet Dursun Ince
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6326 (🔍)
GCVE (CVE): GCVE-0-2017-6326
GCVE (VulDB): GCVE-100-102748
SecurityFocus: 98893 - Symantec Messaging Gateway CVE-2017-6326 Remote Code Execution Vulnerability
SecurityTracker: 1038785

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

Entryinfo

Created: 06/22/2017 19:20
Updated: 11/30/2025 18:02
Changes: 06/22/2017 19:20 (88), 10/19/2019 18:24 (8), 12/29/2020 13:12 (2), 12/29/2020 13:14 (1), 11/30/2025 18:02 (15)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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