CVE-2017-8538
Description
The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to memory corruption. aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability", a different vulnerability than CVE-2017-8540 and CVE-2017-8541.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Microsoft MsMpEng - Multiple Crashes While Scanning Malformed Files
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| windows | not-affected | | |
| windows | 1511 | not-affected | |
| windows | 1607 | not-affected | |
| windows | 1703 | not-affected | |
| windows | - | not-affected | |
| windows | r2 | not-affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| microsoft | forefront_security | - | |
| microsoft | malware_protection_engine | {"endIncluding":"1.1.13704.0"} | |
| microsoft | windows_defender | - | |
| microsoft | exchange_server | 2013 | |
| microsoft | exchange_server | 2016 | |
References
- http://www.securityfocus.com/bid/98706
- http://www.securitytracker.com/id/1038571
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8538
- https://www.exploit-db.com/exploits/42081/
- http://www.securityfocus.com/bid/98706
- http://www.securitytracker.com/id/1038571
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8538
- https://www.exploit-db.com/exploits/42081/
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.