XML External Entity injection in VMware, vRealize Automation

1) XML External Entity injection

EUVDB-ID: #VU39959

Risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-7460

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

The Single Sign-On feature in VMware vCenter Server 5.5 before U3e and 6.0 before U2a and vRealize Automation 6.x before 6.2.5 allows remote attackers to read arbitrary files or cause a denial of service via an XML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Aria Automation (formerly vRealize Automation): 6.0.0 - 6.2.4

CPE2.3

• cpe:2.3:a:vmware:vrealize_automation:6.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:vrealize_automation:6.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:vrealize_automation:6.0.1.1:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/94485
https://www.securitytracker.com/id/1037327
https://www.securitytracker.com/id/1037329
https://www.vmware.com/security/advisories/VMSA-2016-0022.html

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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