cbcvebase.
CVE-2022-36981
published 2023-03-29

CVE-2022-36981: This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.3.101. Although authentication is…

PriorityP182critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
83.44%
99.6th percentile
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.3.101. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the DeviceLogResource class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-15966.

Affected

2 ranges
VendorProductVersion rangeFixed in
ivantiavalanche——
ivantiavalanche>= 6.3.3.101 < 6.3.46.3.4

Detection & IOCsextracted from sources · hover to see the quote

  • →Vulnerability exists within the DeviceLogResource class — monitor for path traversal sequences in requests targeting this endpoint, as the flaw stems from lack of proper validation of a user-supplied path prior to file operations. ↗
  • →The existing authentication mechanism can be bypassed — monitor for unauthenticated or anomalous access patterns to Ivanti Avalanche endpoints even when authentication is nominally required. ↗
  • →Execution occurs in the context of the service account — alert on unexpected process spawning or file writes originating from the Ivanti Avalanche service account following suspicious DeviceLogResource requests. ↗
  • ·Affected version is specifically Ivanti Avalanche 6.3.3.101 — scope detection and patching efforts to this version. ↗
  • ·Classified as CWE-22 (Path Traversal) with a CVSS Base Score of 9.8 (CRITICAL) — prioritize detection and remediation accordingly. ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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