Critical severity · published Oct 11, 2023
CVE-2023-45132
NAXSI is an open-source maintenance web application firewall (WAF) for NGINX
9.8
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NA
Naxsi · Wargio
1.3 before 1.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-45132
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-45132
Patch
https://github.com/wargio/naxsi/commit/1b712526ed3314dd6be7e8b0259eabda63c19537
Patch
https://github.com/wargio/naxsi/pull/103
Third Party Advisory
https://github.com/wargio/naxsi/security/advisories/GHSA-7qjc-q4j9-pc8x
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Directory traversal vulnerability in naxsi-ui/nx_extract.py in the Naxsi module before 0.46-1 for Nginx allows local users to read arbitrary files via unspecified vectors