CVE-2022-1579

Login Block IPs <= 1.0.0 - IP Spoofing to Protection Mechanism Bypass

2022-09-05 00:00

Strategic Overview

Status: Unpatched
Affected Plugin: Login Block IPs
Affected Version: *
CVSS: 5.3Medium
Weakness type: CWE-348 · Use of Less Trusted Source
CVE: CVE-2022-1579

View all Login Block IPs vulnerabilities

At a glance

CVE-2022-1579 is a medium-severity Use of Less Trusted Source vulnerability in the Login Block IPs WordPress plugin, affecting versions *. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed September 2022, reported by Daniel Ruf.

Vulnerability Overview

The Login Block IPs plugin for WordPress is vulnerable to IP Address Spoofing in versions up to and including 1.0.0. This is due to insufficient restrictions on where the IP Address information is being retrieved in the check_is_login_page() function . Attackers can supply the HTTP_CLIENT_IP header with with a different IP Address that can be used to bypass any blocks.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-348: Use of Less Trusted Source

The product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

The attempt arrives as an ordinary request to Login Block IPs: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-1579 https://www.wordfence.com/threat-intel/vulnerabilities/id/3e772760-f390-417f-82d0-f415a6ef837d https://nvd.nist.gov/vuln/detail/CVE-2022-1579

Related records

Other vulnerabilities in Login Block IPs

8.8CVE-2022-3098: Login Block IPs <= 1.0.0 CSRF to Plugin Settings UpdateCVE-2022-3098

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/