OS Command Injection in vSphere Replication - CVE-2021-21976
Published: February 12, 2021
Vulnerability identifier: #VU50657
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21976
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in "Startup Configuration" page. A remote authenticated administrator can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
vSphere Replication
How to mitigate CVE-2021-21976
Install updates from vendor's website.
vSphere Replication - addressed in versions 6.5.1.5, 8.1.2.3, 8.2.1.1, 8.3.1.2