S2T: CrushFTP <10.7.1 & <11.1.0, Auth Bypass & RCE
CVE-2024-4040 Published on April 22, 2024
Unauthenticated arbitrary file read and remote code execution in CrushFTP
A server side template injection vulnerability in CrushFTP in all versions before 10.7.1 and 11.1.0 on all platforms allows unauthenticated remote attackers to read files from the filesystem outside of the VFS Sandbox, bypass authentication to gain administrative access, and perform remote code execution on the server.
Known Exploited Vulnerability
This CrushFTP VFS Sandbox Escape Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. CrushFTP contains an unspecified sandbox escape vulnerability that allows a remote attacker to escape the CrushFTP virtual file system (VFS).
The following remediation steps are recommended / required by May 1, 2024: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vulnerability Analysis
CVE-2024-4040 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
Products Associated with CVE-2024-4040
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Affected Versions
CrushFTP:- Version 10.0 and below 10.7.1 is affected.
- Version 11.0 and below 11.1.0 is affected.
- Version 10.0 and below 10.7.1 is affected.
- Version 11.0 and below 11.1.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.