Vulnerability-Lookup

VAR-202212-1427

Vulnerability from variot - Updated: 2025-05-28 23:20

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. rsjoomla of WordPress for rsfirewall! Exists in unspecified vulnerabilities.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state

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CVE-2021-4226 (GCVE-0-2021-4226)

Vulnerability from cvelistv5 – Published: 2022-12-15 17:14 – Updated: 2025-04-21 14:18

Title

RSFirewall < 1.1.25 - IP Block Bypass

Summary

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.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-639 Authorization Bypass Through User-Controlled Key

Assigner

WPScan

References

URL

Tags

https://wpscan.com/vulnerability/c0ed80c8-ebbf-4e…

exploitvdb-entrytechnical-description

Impacted products

	Vendor	Product	Version
	Unknown	RSFirewall!	Affected: 0 , < 1.1.25 (custom)

Credits

Daniel Ruf

Show details on NVD website

JSON

To clipboard

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      },
      "title": "RSFirewall \u003c 1.1.25 - IP Block Bypass",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2021-4226",
    "datePublished": "2022-12-15T17:14:40.696Z",
    "dateReserved": "2022-04-10T06:55:50.348Z",
    "dateUpdated": "2025-04-21T14:18:04.471Z",
    "requesterUserId": "dc9e157c-ddf1-4983-adaf-9f01d16b5e04",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-202212-1427

CVE-2021-4226 (GCVE-0-2021-4226)

Tags

Sightings

Nomenclature