CVE-2023-45132
Critical
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.
SeverityCritical
CVSS9.1
Exploit probability—
ProductWargio Naxsi
PublishedOct 11, 2023
First seenOct 11, 2023
Weakness typeCWE-693CWE-693
How to fix
Update
- wargio naxsi1.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wargio naxsi | 1.3 ≤ v < 1.6 | 1.6 |
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