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How the CVE Works
CVE-2025-2950 exploits improper neutralization of HTTP host headers in IBM Navigator for i. An authenticated attacker manipulates the `Host` header in HTTP requests, redirecting traffic to a malicious domain/IP. This can lead to server-side request forgery (SSRF), cache poisoning, or credential theft. The vulnerability arises due to insufficient validation of user-supplied input in the HTTP header processing logic, allowing arbitrary host injection.
DailyCVE Form
Platform: IBM i
Version: 7.3, 7.4, 7.5
Vulnerability: Host Header Injection
Severity: Critical
Date: 07/03/2025
Prediction: Patch by Q3 2025
What Undercode Say
curl -H "Host: malicious.com" http://target-ibmi/navigator nmap -p 80 --script http-host-header-injection target-ibmi
How Exploit
1. Authenticate to IBM Navigator for i.
2. Craft HTTP request with malicious `Host` header.
3. Trigger SSRF or cache poisoning.
Protection from this CVE
- Apply IBM security patches.
- Implement strict host header validation.
- Use web application firewalls (WAF).
Impact
- Unauthorized data access.
- Server compromise.
- Credential hijacking.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
