CVE-2018-7484

Description

An issue was discovered in PureVPN through 5.19.4.0 on Windows. The client installation grants the Everyone group Full Control permission to the installation directory. In addition, the PureVPNService.exe service, which runs under NT Authority\SYSTEM privileges, tries to load several dynamic-link libraries using relative paths instead of the absolute path. When not using a fully qualified path, the application will first try to load the library from the directory from which the application is started. As the residing directory of PureVPNService.exe is writable to all users, this makes the application susceptible to privilege escalation through DLL hijacking.

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.13%
Third-Party Advisory defensecode.com Third-Party Advisory securityfocus.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.defensecode.com/advisories/DC-2018-02-001-PureVPN-Windows-Privilege-Escalation.pdf third party advisory
https://www.securityfocus.com/archive/1/541803 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-7484?
CVE-2018-7484 has been scored as a high severity vulnerability.
How to fix CVE-2018-7484?
To fix CVE-2018-7484, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-7484 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-7484 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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