CVE-2023-45132

IgnoreIP/IgnoreCIDR should not trust X-Forwarded-For

Description

NAXSI is an open-source maintenance web application firewall (WAF) for NGINX. An issue present starting in version 1.3 and prior to version 1.6 allows someone to bypass the WAF when a malicious `X-Forwarded-For` IP matches `IgnoreIP` `IgnoreCIDR` rules. This old code was arranged to allow older NGINX versions to also support `IgnoreIP` `IgnoreCIDR` when multiple reverse proxies were present. The issue is patched in version 1.6. As a workaround, do not set any `IgnoreIP` `IgnoreCIDR` for older versions.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.06%
Third-Party Advisory github.com
Affected: wargio naxsi
Published at:
Updated at:

References

Link Tags
https://github.com/wargio/naxsi/security/advisories/GHSA-7qjc-q4j9-pc8x third party advisory
https://github.com/wargio/naxsi/pull/103 patch
https://github.com/wargio/naxsi/commit/1b712526ed3314dd6be7e8b0259eabda63c19537 patch

Frequently Asked Questions

What is the severity of CVE-2023-45132?
CVE-2023-45132 has been scored as a critical severity vulnerability.
How to fix CVE-2023-45132?
To fix CVE-2023-45132, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-45132 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-45132 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-45132?
CVE-2023-45132 affects wargio naxsi.
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