CVE-2019-1476

EPSS 5.1%

Vexday Risk Score

23Low

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS —EPSS 5.1%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

05 Dec 2019Public PoC

10 Dec 2019Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1483.

Affected products

Microsoft · Windows Microsoft · Windows 10 Version 1903 for 32-bit Systems Microsoft · Windows 10 Version 1903 for ARM64-based Systems Microsoft · Windows 10 Version 1903 for x64-based Systems Microsoft · Windows 10 Version 1909 for 32-bit Systems Microsoft · Windows 10 Version 1909 for ARM64-based Systems Microsoft · Windows 10 Version 1909 for x64-based Systems Microsoft · Windows Server Microsoft · Windows Server, version 1903 (Server Core installation)Microsoft · Windows Server, version 1909 (Server Core installation)

public PoCs found — 3

githubgithub.com/sgabe/CVE-2019-1476★ 3 cve_referencepacketstormsecurity.com/files/155653/AppXSvc-17763-Arbitrary-File-Overwrite.htmlunverified exploitdbwww.exploit-db.com/exploits/47768unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

http://packetstormsecurity.com/files/155653/AppXSvc-17763-Arbitrary-File-Overwrite.html https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1476