CVE-2024-1019

2024-01-3016:15:47

CWE-20

NCSC.ch

web.nvd.nist.gov

cve-2024

modsecurity

libmodsecurity

waf bypass

security vulnerability

path-based payloads

request urls

upgrade advice

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

8.3

Confidence

High

EPSS

0.001

Percentile

20.6%

JSON

ModSecurity / libModSecurity 3.0.0 to 3.0.11 is affected by a WAF bypass for path-based payloads submitted via specially crafted request URLs. ModSecurity v3 decodes percent-encoded characters present in request URLs before it separates the URL path component from the optional query string component. This results in an impedance mismatch versus RFC compliant back-end applications. The vulnerability hides an attack payload in the path component of the URL from WAF rules inspecting it. A back-end may be vulnerable if it uses the path component of request URLs to construct queries. Integrators and users are advised to upgrade to 3.0.12. The ModSecurity v2 release line is not affected by this vulnerability.

Affected configurations

Nvd

Node

trustwavemodsecurityRange3.0.0–3.0.12

VendorProductVersionCPE
trustwavemodsecurity*cpe:2.3:a:trustwave:modsecurity:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
trustwave	modsecurity	*	cpe:2.3:a:trustwave:modsecurity::::::::

CNA Affected

[
  {
    "collectionURL": "https://modsecurity.digitalwave.hu",
    "defaultStatus": "unaffected",
    "product": "ModSecurity",
    "repo": "https://github.com/owasp-modsecurity/ModSecurity",
    "vendor": "OWASP ModSecurity",
    "versions": [
      {
        "lessThanOrEqual": "3.0.11",
        "status": "affected",
        "version": "3.0.0",
        "versionType": "patch"
      }
    ]
  }
]