Headline

CVE-2022-36980: ZDI-22-785

This vulnerability allows remote attackers to bypass authentication on affected installations of Ivanti Avalanche 6.3.2.3490. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the EnterpriseServer service. The issue results from the lack of proper locking when performing operations during authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-15528.

1 year ago

CVE

Open in Source

#vulnerability #auth

May 26th, 2022

Ivanti Avalanche EnterpriseServer Service Race Condition Authentication Bypass Vulnerability****ZDI-22-785
ZDI-CAN-15528

CVE ID

CVE-2022-36980

CVSS SCORE

9.4, (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H)

AFFECTED VENDORS

Ivanti

AFFECTED PRODUCTS

Avalanche

VULNERABILITY DETAILS

This vulnerability allows remote attackers to bypass authentication on affected installations of Ivanti Avalanche. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the EnterpriseServer service. The issue results from the lack of proper locking when performing operations during 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://download.wavelink.com/Files/avalanche_v6.3.4_release_notes.txt

DISCLOSURE TIMELINE

2021-11-10 - Vulnerability reported to vendor
2022-05-26 - Coordinated public release of advisory
2022-07-27 - Advisory Updated

CREDIT

Piotr Bazydlo (@chudypb)

BACK TO ADVISORIES

SolarWinds Platform was susceptible to the Deserialization of Untrusted Data. This vulnerability allows a remote adversary with Orion admin-level account access to SolarWinds Web Console to execute arbitrary commands.