Ivanti Avalanche validateAMCWSConnection Server-Side Request Forgery Information Disclosure Vulnerability

January 11th, 2024
ZDI-24-053 ZDI-CAN-21406

CVE ID

CVE-2023-46262

CVSS Score

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

Affected Vendors

Ivanti

Affected Products

Avalanche

Vulnerability Details

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Ivanti Avalanche. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the validateAMCWSConnection method. The issue results from the lack of proper validation of a URI prior to accessing resources. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM.

Additional Details

Ivanti has issued an update to correct this vulnerability. More details can be found at:
https://forums.ivanti.com/s/article/Avalanche-6-4-2-Security-Hardening-and-CVEs-addressed?language=en_US

Disclosure Timeline

  • 2023-07-11 - Vulnerability reported to vendor
  • 2024-01-11 - Coordinated public release of advisory
  • 2024-07-01 - Advisory Updated

Credit

Anonymous

Back to Advisories