CVE-2024-4040
CrushFTP: VFS Sandbox Escape
As of , CVE-2024-4040 in CrushFTP is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 24 April 2024
- US federal deadline
- 1 May 20247 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.99Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.00 on 24 April 2024EPSS on the day CISA listed it.
- Public exploit
- 1 Metasploit module
- Fix
- Vendor advice: www.crushftp.comLinks below, from CISA's entry.
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA's required action
What the flaw is
CrushFTP contains an unspecified sandbox escape vulnerability that allows a remote attacker to escape the CrushFTP virtual file system (VFS).
CISA's description
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.
The CVE record's description, from directcyber
- CVE published
- 22 April 2024
- Assigned by
- directcyber
- CVSS
- 9.8 Critical (CVSS 3.1, from the CNA)
- CWE-1336
- Improper Neutralization of Special Elements Used in a Template Engine
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- yes
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Public exploits
Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.
- Metasploit: CrushFTP Unauthenticated Arbitrary File Readauxiliary module, rank normal
CrushFTP: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2025-54309Unprotected Alternate Channel | CrushFTP CrushFTP | Patch this weekEPSS 0.95 | 0.95 | ||
| CVE-2025-31161Authentication Bypass | CrushFTP CrushFTP | Patch this weekRansomware use; EPSS 0.99 | 0.99 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org