CVE-2017-6327

HIGH KEV

Symantec Messaging Gateway < 10.6.3-267 - Remote Code Execution

Title source: llm

Exploitation Summary

CVE-2017-6327 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added November 3, 2021. EIP tracks 1 public exploit from researchers including Philip Pettersson.

AI-analyzed exploit summary This exploit combines an authentication bypass (via encrypted `notify` parameter) and a command injection in the `db-restore` script to achieve unauthenticated remote code execution as root on Symantec Messaging Gateway.

Description

The Symantec Messaging Gateway before 10.6.3-267 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. In this type of occurrence, after gaining access to the system, the attacker may attempt to elevate their privileges.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Philip Pettersson · textwebappsjsp

https://www.exploit-db.com/exploits/42519

View Code ZIP pw:eip

This exploit combines an authentication bypass (via encrypted `notify` parameter) and a command injection in the `db-restore` script to achieve unauthenticated remote code execution as root on Symantec Messaging Gateway.

Classification

Working Poc 100%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: Symantec Messaging Gateway (Brightmail) <= 10.6.3-2

No auth needed

Prerequisites: Network access to the web interface · Knowledge of the static encryption password for the `notify` parameter

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1059 - Command and Scripting Interpreter T1068 - Exploitation for Privilege Escalation

devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5

Core References

Third Party Advisory, US Government Resource

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6327

Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc

http://seclists.org/fulldisclosure/2017/Aug/28

Third Party Advisory, VDB Entry exploit x_refsource_exploit-db

https://www.exploit-db.com/exploits/42519/

Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/100135

Vendor Advisory x_refsource_confirm

https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20170810_00

Scores

CVSS v3 8.8

EPSS 0.3534

EPSS Percentile 98.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation active

Automatable no

Technical Impact total

Details

CISA KEV 2021-11-03

VulnCheck KEV 2020-10-20

InTheWild.io 2021-07-23

ENISA EUVD EUVD-2017-15388

CWE

CWE-77

Status published

Products (2)

symantec/message_gateway < 10.6.3-267

Symantec Corporation/Messaging Gateway All versions prior to version 10.6.3-267

Published Aug 11, 2017

KEV Added Nov 03, 2021

Tracked Since Feb 18, 2026