Vulnerability · Published Dec 15, 2022 · Assigned by WPScan
CVE-2021-4226RSFirewall < 1.1.25 - IP Block Bypass
Critical 9.8
In plain English
A critical-severity insufficient verification of data authenticity in RSFirewall! from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 54.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
RSFirewall tries to identify the original IP address by looking at different HTTP headers. A bypass is possible due to the way it is implemented.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | RSFirewall! | 0 – before 1.1.25 |
Weakness: CWE-345 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://wpscan.com/vulnerability/c0ed80c8-ebbf-4ed9-b02f-31660097c352 exploit, vdb-entry, technical-description