(0Day) VIPRE Antivirus Plus FPQuarTransfer Link Following Local Privilege Escalation Vulnerability

May 31st, 2023
ZDI-23-759 ZDI-CAN-19397

CVE ID

CVE-2023-32179

CVSS Score

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

Affected Vendors

VIPRE

Affected Products

Antivirus Plus

Vulnerability Details

This vulnerability allows local attackers to escalate privileges on affected installations of VIPRE Antivirus Plus. 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 FPQuarTransfer method. By creating a symbolic link, an attacker can abuse the method to delete arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

Additional Details

VIPRE has issued an update to correct this vulnerability. More details can be found at:
https://success.vipre.com/en_US/antivirus-plus-release-notes/home-plus-release-notes-20230530

Disclosure Timeline

  • 2022-11-24 - Vulnerability reported to vendor
  • 2023-05-31 - Coordinated public release of advisory
  • 2023-06-14 - Advisory Updated

Credit

Yulin Sung - Trend Micro Zero Day Initiative

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