PT-2021-23550 · Ivanti · Ivanti Avalanche

CVE-2021-42126 · Published 2021-11-18 · Updated 2022-08-09

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Ivanti Avalanche versions prior to 6.3.3

Description An improper authorization control issue exists, allowing an attacker with access to the Inforail Service to perform privilege escalation.

Recommendations For versions prior to 6.3.3, update to version 6.3.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the Inforail Service to minimize the risk of exploitation.

Fix

Improper Authorization

Weakness Enumeration

CWE-285

Related Identifiers

CVE-2021-42126

ZDI-21-1300

Affected Products

Ivanti Avalanche

References · 6

• https://zerodayinitiative.com/advisories/ZDI-21-1300 · Security Note
• https://forums.ivanti.com/s/article/Security-Alert-CVE-s-Addressed-in-Avalanche-6-3-3 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-42126 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-42126 · Security Note
• https://t.me/cibsecurity/33443 · Telegram Post
• https://t.me/cvenotify/24342 · Telegram Post