Home/CVE/The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Serve
CVE

CVE-2017-8535

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Serve

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 denial of service. aka "Microsoft Malware Protection Engine Denial of Service Vulnerability", a different vulnerability than CVE-2017-8536, CVE-2017-8537, CVE-2017-8539, and CVE-2017-8542.

MEDIUM · CVSS 5.5 EPSS 0.04953
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  • Public exploit or PoC is available
Sigma rules9 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-369Divide By Zero
CWE-476NULL Pointer Dereference
CWE-674Uncontrolled Recursion
▤

Affected Products & Versions

7
microsoft windows defenderall versions
microsoft endpoint protectionall versions
microsoft exchange serverall versions
microsoft forefront endpoint protectionall versions
microsoft security essentialsall versions
microsoft system center endpoint protectionall versions
microsoft windows intune endpoint protectionall versions
⚠

Public Exploits & PoCs

2
dosMicrosoft MsMpEng - Multiple Crashes While Scanning Malformed Filesverified
pocwww.exploit-db.com · 42081www.exploit-db.com
◈

Sigma Hunt Rules

9
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighTamper Windows Defender - PSClassic
producthighTamper Windows Defender Remove-MpPreference - ScriptBlockLogging
producthighTamper Windows Defender - ScriptBlockLogging
producthighPotential Windows Defender AV Bypass Via Dump64.EXE Rename
producthighSuspicious Uninstall of Windows Defender Feature via PowerShell
producthighWindows Defender Context Menu Removed
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 May 2017 · 08:29 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

1
msrcCVE-2017-8535Denial of Service
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/98702Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038571Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8535PatchVendor Advisory
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