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SonicWALL Connect Tunnel Link Following Denial-of-Service Vulnerability

October 11th, 2024

Vulnerability Details

This vulnerability allows local attackers to create a denial-of-service condition on affected installations of SonicWALL Connect Tunnel. 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 SonicWall VPN. By creating a symbolic link, an attacker can abuse the application to create a file. An attacker can leverage this vulnerability to create a persistent denial-of-service condition on the host system.

Additional Details

SonicWALL has issued an update to correct this vulnerability. More details can be found at:
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0017

Disclosure Timeline

  • 2024-02-14 - Vulnerability reported to vendor
  • 2024-10-11 - Coordinated public release of advisory
  • 2024-10-11 - Advisory Updated

Credit

Hashim Jawad (@ihack4falafel)

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