PT-2022-23715 · Ivanti · Ivanti Avalanche

Chudypb + 1 · Published 2022-05-26 · Updated 2023-04-06 · CVE-2022-36971

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Ivanti Avalanche version 6.3.2.3490

Description This issue allows remote attackers to execute arbitrary code on affected installations. Although authentication is required to exploit this issue, the existing authentication mechanism can be bypassed. The specific flaw exists within the JwtTokenUtility class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this issue to execute code in the context of the service account.

Recommendations For Ivanti Avalanche version 6.3.2.3490, consider disabling the JwtTokenUtility class until a patch is available to prevent deserialization of untrusted data. Restrict access to sensitive areas of the service to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2022-36971

ZDI-22-776

Affected Products

Ivanti Avalanche

References · 5

• https://zerodayinitiative.com/advisories/ZDI-22-776 · Security Note
• https://osv.dev/vulnerability/CVE-2022-36971 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-36971 · Security Note
• https://download.wavelink.com/Files/avalanche_v6.3.4_release_notes.txt · Note
• https://t.me/cvenotify/47646 · Telegram Post