How the Mentioned CVE Works:
CVE-2025-24472 is an authentication bypass vulnerability in FortiOS (versions 7.0.0 through 7.0.16) and FortiProxy (versions 7.2.0 through 7.2.12, 7.0.0 through 7.0.19). The flaw, classified under CWE-288, allows a remote attacker to bypass authentication mechanisms and gain super-admin privileges by sending crafted CSF (Cloud Security Fabric) proxy requests. This vulnerability exploits an alternate path or channel to bypass standard authentication checks, enabling unauthorized access to administrative functions. The CVSS 4.0 severity score reflects its critical nature due to the potential for complete system compromise.
DailyCVE Form:
Platform: FortiOS, FortiProxy
Version: 7.0.0 – 7.0.16, 7.2.0 – 7.2.12
Vulnerability: Authentication Bypass
Severity: Critical
Date: 02/11/2025
What Undercode Say:
Exploitation:
- Crafting Malicious Requests: Attackers can exploit this vulnerability by sending specially crafted CSF proxy requests to the target system.
Example:
curl -X POST -d "malicious_payload" http://target-ip:port/csf-endpoint
2. Gaining Super-Admin Access: Successful exploitation grants super-admin privileges, allowing full control over the system.
Protection:
- Patch Management: Apply the latest security patches provided by Fortinet for FortiOS and FortiProxy.
Example:
fortios-update --version 7.0.17
2. Network Segmentation: Isolate critical systems to limit the attack surface.
3. Intrusion Detection Systems (IDS): Deploy IDS to detect and block malicious CSF proxy requests.
Example Snort Rule:
alert tcp any any -> $HOME_NET any (msg:"CVE-2025-24472 Exploit Attempt"; content:"malicious_payload"; sid:1000001;)
4. Access Control: Restrict access to administrative interfaces using firewalls and VPNs.
Analytics:
- Attack Vector: Remote
- Complexity: Low
- Privileges Required: None
- User Interaction: None
- Impact: High (Confidentiality, Integrity, Availability)
Commands:
- Check Version: Verify the installed version of FortiOS/FortiProxy.
show version
- Apply Patch: Update to the latest secure version.
execute update-now
- Monitor Logs: Check for suspicious CSF proxy requests.
get log fortianalyzer
Code Snippets:
1. Python Exploit PoC:
import requests
target = "http://target-ip:port/csf-endpoint"
payload = {"data": "malicious_payload"}
response = requests.post(target, data=payload)
print(response.text)
2. Bash Patch Script:
!/bin/bash wget https://fortinet.com/patches/fortios-7.0.17.pkg sudo fortios-install fortios-7.0.17.pkg
By following these steps, organizations can mitigate the risks associated with CVE-2025-24472 and protect their systems from exploitation.
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-24472
Extra Source Hub:
Undercode
