Link following in K7 Ultimate Security - CVE-2019-16896

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Main Vulnerability Database Vulnerabilities #VU34937

Link following in K7 Ultimate Security - CVE-2019-16896

Published: December 27, 2019 / Updated: August 8, 2020


Vulnerability identifier: #VU34937
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-16896
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: K7 Computing Pvt Ltd.
Affected software:
K7 Ultimate Security

Detailed vulnerability description

The vulnerability allows a local authenticated user to execute arbitrary code.

In K7 Ultimate Security 16.0.0117, the module K7BKCExt.dll (aka the backup module) improperly validates the administrative privileges of the user, allowing an arbitrary file write via a symbolic link attack with file restoration functionality.


How to mitigate CVE-2019-16896

Install update from vendor's website.

Sources