PT-2021-23549 · Ivanti · Ivanti Avalanche

Published 2021-11-18 · Updated 2021-12-08 · CVE-2021-42125

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 unrestricted file upload vulnerability exists, allowing an attacker with access to the Inforail Service to write dangerous files. This issue can potentially lead to remote code execution.

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

Deserialization of Untrusted Data

Unrestricted File Upload

Weakness Enumeration

CWE-502

CWE-434

Related Identifiers

CVE-2021-42125

ZDI-21-1299

Affected Products

Ivanti Avalanche

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-42125 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-1299 · 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-2021-42125 · Vendor Advisory
• https://t.me/cvenotify/24343 · Telegram Post
• https://t.me/cibsecurity/33451 · Telegram Post