Security features bypass in Microsoft Exchange Server - CVE-2021-31207
Published: May 11, 2021 / Updated: October 5, 2021
Vulnerability identifier: #VU53085
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear
CVE-ID: CVE-2021-31207
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Microsoft
Affected software:
Microsoft Exchange Server
Microsoft Exchange Server
Detailed vulnerability description
The vulnerability allows a remote user to bypass authentication process.
The vulnerability exists due to security feature bypass issue in Microsoft Exchange Server. A remote administrator can gain full access to target system.
How to mitigate CVE-2021-31207
Install updates from vendor's website.