Ivanti Avalanche User Management Improper Authentication Privilege Escalation Vulnerability

November 18th, 2021
ZDI-21-1300 ZDI-CAN-14188

CVE ID

CVE-2021-42126

CVSS Score

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

Affected Vendors

Ivanti

Affected Products

Avalanche

Vulnerability Details

This vulnerability allows remote attackers to escalate privileges on affected installations of Ivanti Avalanche. Authentication is required to exploit this vulnerability.

The specific flaw exists within the userManagement.jsf page. The issue results from improper authentication. An attacker can leverage this vulnerability to escalate privileges to the level of admin.

Additional Details

Fixed in version 6.3.3.


Disclosure Timeline

  • 2021-06-30 - Vulnerability reported to vendor
  • 2021-11-18 - Coordinated public release of advisory
  • 2022-05-26 - Advisory Updated

Credit

Piotr Bazydlo (@chudypb)

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