CVE-2018-8260 — A Remote Code Execution vulnerability exists in

A Remote Code Execution vulnerability exists in .NET software when the software fails to check the source markup of a file, aka ".NET Framework Remote Code Execution Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 4.7.2.

01What is this vulnerability?

A Remote Code Execution vulnerability exists in .NET software when the software fails to check the source markup of a file, aka ".NET Framework Remote Code Execution Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 4.7.2.

02Affected products

Vendor	Product	Versions
Microsoft	.NET Framework	4.7.2 Developer Pack
Microsoft	Microsoft .NET Framework	4.7.2 on Windows 10 Version 1607 for 32-bit Systems, 4.7.2 on Windows 10 Version 1607 for x64-based Systems, 4.7.2 on Windows 10 Version 1703 for 32-bit Systems, 4.7.2 on Windows 10 Version 1703 for x64-based Systems, 4.7.2 on Windows 10 Version 1709 for 32-bit Systems, 4.7.2 on Windows 10 Version 1709 for x64-based Systems, 4.7.2 on Windows 10 Version 1803 for 32-bit Systems, 4.7.2 on Windows 10 Version 1803 for x64-based Systems, 4.7.2 on Windows 7 for 32-bit Systems Service Pack 1, 4.7.2 on Windows 7 for x64-based Systems Service Pack 1, 4.7.2 on Windows 8.1 for 32-bit systems, 4.7.2 on Windows 8.1 for x64-based systems, 4.7.2 on Windows RT 8.1, 4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1, 4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), 4.7.2 on Windows Server 2012, 4.7.2 on Windows Server 2012 (Server Core installation), 4.7.2 on Windows Server 2012 R2, 4.7.2 on Windows Server 2012 R2 (Server Core installation), 4.7.2 on Windows Server 2016, 4.7.2 on Windows Server 2016 (Server Core installation), 4.7.2 on Windows Server, version 1709 (Server Core Installation), 4.7.2 on Windows Server, version 1803 (Server Core Installation)

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-07-11T00:00:00.000Z
• Last modified: 2024-08-05T06:46:13.859Z

09References

• www.securityfocus.com — http://www.securityfocus.com/bid/104666
• www.securitytracker.com — http://www.securitytracker.com/id/1041257
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8260