Cross-site scripting in VMware ESXi

1) Stored cross-site scripting

EUVDB-ID: #VU1431

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-7463

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data passed via malicious VM (virtual machine) image. A remote attacker can create a specially crafted VM image, containing XSS exploit, trick the victim into importing the image and permanently store arbitrary HTML and script code, which will be executed in victim’s browser in context of vulnerable website every time the victim visits vulnerable interface.

Successful exploitation of the vulnerability may allow an attacker to gain access to potentially sensitive data.

Mitigation

The vendor has issued the following patches to address this vulnerability:

ESXi 6.0   

ESXi600-201611102-SG

ESXi 5.5   

ESXi550-201612102-S

Vulnerable software versions

VMware ESXi: 5.5 - 6.0

CPE2.3

• cpe:2.3:o:vmware:vmware_esxi:5.5:*:*:*:*:*:*:*
• cpe:2.3:o:vmware:vmware_esxi:6.0:*:*:*:*:*:*:*

External links

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=21458...
https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=21481...
https://www.vmware.com/security/advisories/VMSA-2016-0023.html

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.