Advisory Details

November 18th, 2021

Ivanti Avalanche Filestore Management Arbitrary File Upload Remote Code Execution Vulnerability

CVE ID	CVE-2021-42125
CVSS SCORE	7.2, AV:N/AC:L/PR:H/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. Authentication is required to exploit this vulnerability. The specific flaw exists within the FileStoreConfig app. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this vulnerability to execute code in the context of the service account.
ADDITIONAL DETAILS	Fixed in version 6.3.3.
DISCLOSURE TIMELINE	2021-06-30 - Vulnerability reported to vendor 2021-11-18 - Coordinated public release of advisory 2022-05-26 - Advisory Updated
CREDIT	Piotr Bazydlo (@chudypb)

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