Buffer overflow in Azure App Service on Azure Stack - CVE-2019-1372
Published: October 9, 2019 / Updated: May 18, 2020
Vulnerability identifier: #VU21657
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2019-1372
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Microsoft
Affected software:
Azure App Service on Azure Stack
Azure App Service on Azure Stack
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Azure App Service/ Antares on Azure Stack. A remote authenticated user can use an unprivileged function to execute arbitrary code in the context of NT AUTHORITY\system thereby escaping the Sandbox.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2019-1372
Install the App Service on Azure Stack Update 7 build number 84.0.2.10