Symantec has released an update to address issues that were discovered in the Symantec Messaging Gateway product.
Symantec Messaging Gateway
CVE
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Affected Version(s)
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Remediation
CVE-2018-12242
CVE-2018-12243
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Prior to 10.6.6
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Upgrade to 10.6.6
CVE-2018-12242
Severity/CVSSv3:
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High / 7.1 AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
References:
Impact:
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Security Focus: BID 105329 / NVD: CVE-2018-12242
Authentication bypass
Description:
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The Symantec Messaging Gateway product may be susceptible to an authentication bypass exploit, which is a type of issue that can allow attackers to potentially circumvent security mechanisms currently in place and gain access to the system or network.
CVE-2018-12243
Severity/CVSSv3:
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High / 7.1 AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
References:
Impact:
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Security Focus: BID 105330 / NVD: CVE-2018-12243
XXE
Description:
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The Symantec Messaging Gateway product may be susceptible to a XML external entity (XXE) exploit, which is a type of issue where XML input containing a reference to an external entity is processed by a weakly configured XML parser. The attack uses file URI schemes or relative paths in the system identifier to access files that should not normally be accessible.
The aforementioned issues were validated by product team engineers. A Symantec Messaging Gateway update, version 10.6.6, has been made available. To determine what version of SMG you are using, please refer to the version number indicated on the login screen of the application. Note that the latest releases of the aforementioned products are available to customers through normal support channels. At this time, Symantec is not aware of any exploitations or adverse customer impact from these issues.
Symantec recommends the following measures to reduce risk of attack: