OS command injection in vSphere Replication



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-21976
CWE-ID CWE-78
Exploitation vector Network
Public exploit N/A
Vulnerable software
 vSphere Replication
Server applications / Other server solutions

Vendor VMware, Inc

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) OS Command Injection

EUVDB-ID: #VU50657

Risk: Medium

CVSSv4.0: 6.1 [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/E:U/U:Green]

CVE-ID: CVE-2021-21976

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

vSphere Replication: 6.5 - 8.3.1.1

CPE2.3 External links

https://www.vmware.com/security/advisories/VMSA-2021-0001.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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