PT-2021-5424 · Ivanti · Ivanti Avalanche

Published 2021-09-22 · Updated 2022-08-09 · CVE-2021-42128

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 versions prior to 6.3.3

Description The issue is related to an exposed dangerous function in the Enterprise Server Service of Ivanti Avalanche, which can be exploited for privilege escalation. This vulnerability is associated with weaknesses in the authentication procedure, allowing a remote attacker to bypass security restrictions and gain unauthorized access to protected information.

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 Enterprise Server Service to minimize the risk of exploitation.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

CWE-749

Related Identifiers

BDU:2021-06267

CVE-2021-42128

ZDI-21-1324

Affected Products

Ivanti Avalanche

References · 11

• https://bdu.fstec.ru/vul/2021-06267 · Security Note
• https://safe-surf.ru/upload/VULN/VULN-20211124.9.pdf · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-1324 · Security Note
• https://osv.dev/vulnerability/CVE-2021-42128 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-42128 · Security Note
• https://forums.ivanti.com/s/article/Security-Alert-CVE-s-Addressed-in-Avalanche-6-3-3 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021112207 · Note
• https://securitylab.ru/vulnerability/526759.php · Note
• https://wavelink.com/Download-Avalanche_Mobile-Device-Management-Software · Note
• https://t.me/cvenotify/24340 · Telegram Post
• https://t.me/cibsecurity/33442 · Telegram Post