CVE-2023-37865

Download IP2Location Country Blocker <= 2.29.1 - Bypass via IP Spoofing

2023-07-10 00:00
Kévin Mosbahi (Mika)

Strategic Overview

Status
Patched in 2.29.2
Affected Plugin
IP2Location Country Blocker
Affected Version
<= 2.29.1
CVSS
6.5Medium
Weakness type
CWE-348 · Use of Less Trusted Source
CVE
CVE-2023-37865
View all IP2Location Country Blocker vulnerabilities

At a glance

CVE-2023-37865 is a medium-severity Use of Less Trusted Source vulnerability in the IP2Location Country Blocker WordPress plugin, affecting versions <= 2.29.1. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.29.2; sites on affected versions should update now. Disclosed July 2023, reported by Kévin Mosbahi (Mika).

Vulnerability Overview

The Download IP2Location Country Blocker plugin for WordPress is vulnerable to IP Address Spoofing in versions up to, and including, 2.29.1. This is due to insufficient restrictions on where the IP Address information is being retrieved for request logging and access restrictions. Attackers can supply the X-Real-IP or X-Forwarded-For header with a different IP Address that will be logged and can be used to bypass settings that may have blocked out an IP address from accessing a page on the site.

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

Update to version 2.29.2, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to IP2Location Country Blocker: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: IP2Location Country Blocker 2.29.2 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-37865https://www.wordfence.com/threat-intel/vulnerabilities/id/814fd060-8781-46ad-86e6-e2b75a7fffc0https://nvd.nist.gov/vuln/detail/CVE-2023-37865

Related records

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