PT-2019-14852 · K7 · K7 Ultimate Security

Published 2019-12-27 · Updated 2020-01-09 · CVE-2019-16896

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions K7 Ultimate Security version 16.0.0117

Description The issue arises from the improper validation of administrative privileges by the K7BKCExt.dll module, also known as the backup module, in K7 Ultimate Security. This allows for an arbitrary file write via a symbolic link attack when utilizing the file restoration functionality.

Recommendations For K7 Ultimate Security version 16.0.0117, consider restricting access to the K7BKCExt.dll module until a patch is available. As a temporary workaround, avoid using the file restoration functionality to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2019-16896

Affected Products

K7 Ultimate Security

References · 4

• 🔥 https://github.com/NtRaiseHardError/Antimalware-Research/blob/master/K7%20Security/Local%20Privilege%20Escalation/v16.0.0117/README.md · Exploit
• https://osv.dev/vulnerability/CVE-2019-16896 · Vendor Advisory
• https://support.k7computing.com/index.php?/selfhelp/categories/Vulnerability%20Report%20and%20Advisory/29 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-16896 · Security Note