PT-2016-30: XML External Entity Injection in vSphere Client

Vulnerable software

vSphere Client
Versions: 5.5, 6.0


Severity level

Severity level: Medium
Impact: Information disclosure
Access Vector: Remote

CVSS v2:
Base Score: 4.3
Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVE: CVE-2016-7458

Software description

vSphere Client is a software for VMware hypervisor or virtualization environment management.

Vulnerability description

The specialists of the Positive Research center have detected an XML External Entity Injection in vSphere Client.

Vulnerability in the vSphere Client allows attackers to obtain sensitive information by tricking a user to connect to a malicious vCenter Server or ESXi.

How to fix

Update your software up to the latest version

Advisory status

23.10.2015 - Vendor gets vulnerability details
22.11.2016 - Vendor releases fixed version and details
25.11.2016 - Public disclosure


The vulnerability was detected by Vladimir Ivanov, Andrey Evlanin, Mikhail Stepankin, Artem Kondratenko, Arseniy Sharoglazov, Positive Research Center (Positive Technologies Company)


Reports on the vulnerabilities previously discovered by Positive Research:

About Positive Technologies

Positive Technologies is a leading provider of vulnerability assessment, compliance management and threat analysis solutions to more than 1,000 global enterprise clients. Our solutions work seamlessly across your entire business: securing applications in development; assessing your network and application vulnerabilities; assuring compliance with regulatory requirements; and blocking real-time attacks. Our commitment to clients and research has earned Positive Technologies a reputation as one of the foremost authorities on SCADA, Banking, Telecom, Web Application and ERP security, and distinction as the #1 fastest growing Security and Vulnerability Management firm in 2012, as shown in an IDC report*. To learn more about Positive Technologies please visit

*Source: IDC Worldwide Security and Vulnerability Management 2013-2017 Forecast and 2012 Vendor Shares, doc #242465, August 2013. Based on year-over-year revenue growth in 2012 for vendors with revenues of $20M+