#VU7643 Insecure DLL library loading in vCenter Server - CVE-2017-4921

Vulnerability identifier: #VU7643

Vulnerability risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-4921

CWE-ID: CWE-426

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
vCenter Server
Server applications / Virtualization software

Vendor: VMware, Inc

Description
The vulnerability allows a remote attacker to gain elevated privileges.

The vulnerability exists due to insecure library loading flaw in the LD_LIBRARY_PATH variable. A remote attacker can trick the victim into execution of wrapper scripts from a world writable directory and gain elevated privileges. 

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 6.5 U1.

Vulnerable software versions

vCenter Server: 6.5.0

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External links
https://www.vmware.com/security/advisories/VMSA-2017-0013.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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