CVE-2018-7891

The Milestone XProtect Video Management Software (Corporate, Expert, Professional+, Express+, Essential+) 2016 R1 (10.0.a) to 2018 R1 (12.1a) contains .NET Remoting endpoints that are vulnerable to deserialization attacks resulting in remote code execution.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• http://www.securityfocus.com/bid/104120
• https://cert-portal.siemens.com/productcert/pdf/ssa-457058.pdf
• https://supportcommunity.milestonesys.com/s/article/XProtect-VMS-NET-security-vulnerability-hotfixes-for-2016-R1-2018-R1?language=en_US
• http://www.securityfocus.com/bid/104120
• https://cert-portal.siemens.com/productcert/pdf/ssa-457058.pdf
• https://supportcommunity.milestonesys.com/s/article/XProtect-VMS-NET-security-vulnerability-hotfixes-for-2016-R1-2018-R1?language=en_US