#VU6953 Deserialization of Untrusted Data in vSphere Data Protection - CVE-2017-4914

Vulnerability identifier: #VU6953

Vulnerability risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2017-4914

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
vSphere Data Protection
Client/Desktop applications / Other client software

Vendor: VMware, Inc

Description
The vulnerability allows a remote unauthenticated attacker to execute arbitrary commands on a targeted system.

The weakness exists due to insecure deserialization of user-supplied content by the affected software. A remote attacker can submit specially crafted, serialized Java objects containing malicious commands and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 6.0.5, 6.1.4.

Vulnerable software versions

vSphere Data Protection: 5.5 - 6.1.3

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External links
https://www.vmware.com/security/advisories/VMSA-2017-0010.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. However, proof of concept for this vulnerability is available.