Symantec has released an update to address two issues that were discovered in the Symantec Messaging Gateway (SMG).
Symantec Messaging Gateway (SMG)
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CVE-2017-6327
CVE-2017-6328
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Prior to 10.6.3-267
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Upgrade to 10.6.3-267
CVE-2017-6327
Severity/CVSSv3:
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High / 7.6 (AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)
References:
Impact:
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Securityfocus: BID 100135 / NVD: CVE-2017-6327
Code Execution
Description:
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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. In this type of occurrence, after gaining access to the system, the attacker may attempt to elevate their privileges.
CVE-2017-6328
Severity/CVSSv3:
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Low / 2.6 (AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L)
References:
Impact:
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Securityfocus: BID 100136 / NVD: CVE-2017-6328
Privilege escalation
Description:
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The Symantec Messaging Gateway can encounter an issue of cross site request forgery (also known as one-click attack and is abbreviated as CSRF or XSRF), which is a type of malicious exploit of a website where unauthorized commands are transmitted from a user that the web application trusts. A CSRF attack attempts to exploit the trust that a specific website has in a userβs browser.
These issues were validated by the product team engineers. A Symantec Messaging Gateway update, version 10.6.3-267, has been released which addresses the aforementioned vulnerabilities. Please ensure you apply the necessary patch. Note that the Symantec Messaging Gateway's latest release is available to customers through normal support channels. For details on the patching process for Symantec Messaging Gateway, you can reference the following knowledge base article: <http://www.symantec.com/docs/TECH246802>
At this time, Symantec is not aware of any exploitations or adverse customer impact from these issues.
Best Practices
Symantec recommends the following measures to reduce risk of attack: