Headline
CVE-2022-36981: ZDI-22-786
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.
May 26th, 2022
Ivanti Avalanche DeviceLogResource Directory Traversal Remote Code Execution Vulnerability****ZDI-22-786
ZDI-CAN-15966
CVE ID
CVE-2022-36981
CVSS SCORE
8.8, (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
AFFECTED VENDORS
Ivanti
AFFECTED PRODUCTS
Avalanche
VULNERABILITY DETAILS
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche. 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.
ADDITIONAL DETAILS
Ivanti has issued an update to correct this vulnerability. More details can be found at:
https://download.wavelink.com/Files/avalanche_v6.3.4_release_notes.txt
DISCLOSURE TIMELINE
- 2021-12-08 - Vulnerability reported to vendor
- 2022-05-26 - Coordinated public release of advisory
- 2022-07-27 - Advisory Updated
CREDIT
Piotr Bazydlo (@chudypb)
BACK TO ADVISORIES
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