Remote File Read Vulnerability in VFS Sandbox
Key Information
- Vendor
- Crushftp
- Status
- Crushftp
- Vendor
- CVE Published:
- 22 April 2024
Badges
Summary
CVE-2024-4040 is a critical vulnerability in CrushFTP, allowing unauthenticated remote attackers to escape the VFS Sandbox, read files from the filesystem, bypass authentication, and perform remote code execution. Over 1,400 CrushFTP servers are exposed and vulnerable to this exploit, which has been actively targeted in attacks by unknown threat actors. Concerns have been raised about the severity of the vulnerability, with over 5,200 CrushFTP servers being exposed to the public internet and susceptible to exploitation. The vendor recommends immediate updates to mitigate this vulnerability, as failure to do so could result in unauthorized access, data theft, and full system compromise. The severity of this exploit has prompted warnings and directives from security organizations to secure vulnerable servers and take preventive measures.
CISA Reported
CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2024-4040 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace
The CISA's recommendation is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected Version(s)
CrushFTP <= 10.0
CrushFTP < 10.7.1
CrushFTP < 11.1.0
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
News Articles
CVE-2024-4040 Detection: A Critical CrushFTP Zero-Day Vulnerability Exploited in the Wild Targeting U.S. Organizations - SOC Prime
Detect CVE-2024-4040 exploitation attempts, a new critical CrushFTP zero-day vulnerability, with a novel Sigma rule from SOC Prime Platform.
5 months ago
Qualys Security Blog CVE-2024-4040CrushFTP Zero-Day Exploitation Due to CVE-2024-4040 | Qualys Security Blog
CrushFTP disclosed a zero-day vulnerability in their software on April 19, 2024. The vulnerability is published on CVE-2024-4040. Affected versions: The CVSS…
5 months ago
Security Affairs CVE-2024-4040+1,400 CrushFTP servers vulnerable to CVE-2024-4040
Over 1,400 CrushFTP internet-facing servers are vulnerable to attacks exploiting recently disclosed CVE-2024-4040 vulnerability.
5 months ago
EPSS Score
96% chance of being exploited in the next 30 days.
CVSS V3.1
Timeline
Vulnerability started trending.
Risk change from: 7.7 to: 9.8 - (CRITICAL)
First article discovered by Tenable
- 👾
Exploit exists.
Vulnerability Reserved.
Vulnerability published.