Advisory Details

March 3rd, 2022

Kaspersky Total Security Link Following Denial-of-Service Vulnerability

ZDI-22-431
ZDI-CAN-14233

CVE ID CVE-2021-35053
CVSS SCORE 6.1, (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H)
AFFECTED VENDORS Kaspersky
AFFECTED PRODUCTS Total Security
VULNERABILITY DETAILS

This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Kaspersky Total Security. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the Safe Browser. By creating a symbolic link, an attacker can abuse the service to overwrite a file. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

ADDITIONAL DETAILS Kaspersky has issued an update to correct this vulnerability. More details can be found at:
https://support.kaspersky.com/general/vulnerability.aspx?el=12430#01112021
DISCLOSURE TIMELINE
  • 2021-08-13 - Vulnerability reported to vendor
  • 2022-03-03 - Coordinated public release of advisory
  • 2022-03-04 - Advisory Updated
CREDIT Abdelhamid Naceri
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