CVE-2019-1385

CVE-2019-1385 is a high-severity (CVSS 7.8) vulnerability in Microsoft Windows. CISA added it to the Known Exploited Vulnerabilities catalog on May 23, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 13, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

An elevation of privilege vulnerability exists when the Windows AppX Deployment Extensions improperly performs privilege management, resulting in access to system files.To exploit this vulnerability, an authenticated attacker would need to run a specially crafted application to elevate privileges.The security update addresses the vulnerability by correcting how AppX Deployment Extensions manages privileges., aka 'Windows AppX Deployment Extensions Elevation of Privilege Vulnerability'.

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

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1385
• https://www.zerodayinitiative.com/advisories/ZDI-19-979/
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1385
• https://www.zerodayinitiative.com/advisories/ZDI-19-979/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1385