Ivanti Avalanche InfoRail Authentication Bypass Vulnerability

April 24th, 2023
ZDI-23-453 ZDI-CAN-17729

CVE ID

CVE-2023-28125

CVSS Score

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

Affected Vendors

Ivanti

Affected Products

Avalanche

Vulnerability Details

This vulnerability allows remote attackers to bypass authentication on affected installations of Ivanti Avalanche. User interaction is required to exploit this vulnerability.

The specific flaw exists within the InfoRail service. The issue results from improper authentication. 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://forums.ivanti.com/s/article/New-Avalanche-Landing-Page?language=en_US

Disclosure Timeline

  • 2022-07-13 - Vulnerability reported to vendor
  • 2023-04-24 - Coordinated public release of advisory

Credit

Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative

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