Advisory Details

May 26th, 2022

Ivanti Avalanche SetSettings Exposed Dangerous Function Authentication Bypass Vulnerability

ZDI-22-788
ZDI-CAN-15919

CVE ID
CVSS SCORE 7.5, (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
AFFECTED VENDORS Ivanti
AFFECTED PRODUCTS Avalanche
VULNERABILITY DETAILS

This vulnerability allows remote attackers to bypass authentication on affected installations of Ivanti Avalanche. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the SetSettings class. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system.

ADDITIONAL DETAILS Ivanti has issued an update to correct this vulnerability. More details can be found at:
https://download.wavelink.com/Files/avalanche_v6.3.4_release_notes.txt
DISCLOSURE TIMELINE
  • 2021-12-08 - Vulnerability reported to vendor
  • 2022-05-26 - Coordinated public release of advisory
  • 2022-05-26 - Advisory Updated
CREDIT Piotr Bazydlo (@chudypb)
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