CVE-2019-0841 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

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-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0836.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows 10 1703	All versions
Microsoft	Windows 10 1709	All versions
Microsoft	Windows 10 1803	All versions
Microsoft	Windows 10 1809	All versions
Microsoft	Windows Server 2016	1803
Microsoft	Windows Server 2019	-

Related Weaknesses (CWE)

CWE-59

References

http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-SeThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-PrivileThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-SeThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-SeThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-EscalatiExploitThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841PatchVendor Advisory
https://www.exploit-db.com/exploits/46683/ExploitThird Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-19-360/Third Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-SeThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-PrivileThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-SeThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-SeThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-EscalatiExploitThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841PatchVendor Advisory
https://www.exploit-db.com/exploits/46683/ExploitThird Party AdvisoryVDB Entry

FAQ

What is CVE-2019-0841?

CVE-2019-0841 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 f...

How severe is CVE-2019-0841?

CVE-2019-0841 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-0841?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 1703, Microsoft Windows 10 1709, Microsoft Windows 10 1803, Microsoft Windows 10 1809, Microsoft Windows Server 2016.