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virtosoftware.virtobulkfiledownload

An issue was discovered in VirtoSoftware Virto Bulk File Download 5.5.44 for SharePoint 2019. The Virto.SharePoint.FileDownloader/Api/Download.ashx isCompleted method allows arbitrary file download and deletion via absolute path traversal in the path parameter.

CVE-2024-33879 is a critical security vulnerability identified in VirtoSoftware Virto Bulk File Download version 5.5.44, a SharePoint 2019 extension. The vulnerability resides in the isCompleted method of the Virto.SharePoint.FileDownloader/Api/Download.ashx endpoint, which processes a 'path' parameter insecurely. Due to insufficient validation, attackers can exploit absolute path traversal to specify arbitrary file paths on the server. This allows unauthorized downloading or deletion of files outside the intended directory scope. The vulnerability is classified under CWE-22 (Improper Limitation of a Pathname to a Restricted Directory). The CVSS 3.1 base score is 9.8, indicating critical severity, with attack vector Network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and full impact on confidentiality, integrity, and availability (C:H/I:H/A:H). This means an unauthenticated remote attacker can fully compromise affected systems by accessing or deleting sensitive files, potentially leading to data breaches, service disruption, or system compromise. No patches or official fixes are currently linked, and no known exploits have been reported in the wild as of the publication date (June 24, 2024). However, the vulnerability's nature and ease of exploitation make it a high priority for remediation. Organizations using Virto Bulk File Download with SharePoint 2019 should immediately assess exposure and implement mitigations to prevent exploitation.

Detailed information about CVE-2024-33879: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2024-33879: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-33879: n/a

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