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cvelistGitHub_MCVELIST:CVE-2023-45132
HistoryOct 11, 2023 - 8:21 p.m.

CVE-2023-45132 IgnoreIP/IgnoreCIDR should not trust X-Forwarded-For

2023-10-1120:21:26
CWE-693
GitHub_M
www.cve.org
2
naxsi
waf
bypass

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

9.7

Confidence

High

EPSS

0.001

Percentile

32.5%

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.

CNA Affected

[
  {
    "vendor": "wargio",
    "product": "naxsi",
    "versions": [
      {
        "version": ">= 1.3, < 1.6",
        "status": "affected"
      }
    ]
  }
]

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

9.7

Confidence

High

EPSS

0.001

Percentile

32.5%

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