Link following in Kaspersky Lab products - CVE-2021-35053
Published: March 7, 2022
Vulnerability identifier: #VU61045
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-35053
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to link following issue within the Safe Browser. A local user can create a symbolic link to abuse the service to overwrite a file and perform a denial of service (DoS) attack.
Affected software
Endpoint Security for Windows
Total Security
Kaspersky Anti-Virus
Internet Security
Small Office Security
Security Cloud
Total Security
Kaspersky Anti-Virus
Internet Security
Small Office Security
Security Cloud
How to mitigate CVE-2021-35053
Install updates from vendor's website.
Endpoint Security for Windows - update to 11.7
Total Security - update to 21.3.10.391(g)
Kaspersky Anti-Virus - update to 21.3.10.391(g)
Internet Security - update to 21.3.10.391(g)
Small Office Security - update to 21.3.10.391(g)
Security Cloud - update to 21.3.10.391(g)
Total Security - update to 21.3.10.391(g)
Kaspersky Anti-Virus - update to 21.3.10.391(g)
Internet Security - update to 21.3.10.391(g)
Small Office Security - update to 21.3.10.391(g)
Security Cloud - update to 21.3.10.391(g)