CVE-2024-1019

Description

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.

How to fix CVE-2024-1019

To remediate CVE-2024-1019, upgrade the affected package to a fixed version below.

—upgrade to 3.0.12 or later
—no fix listed
—no fix listed

Is CVE-2024-1019 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (3)

>= 3.0.0, < 3.0.12
>= 3.0.0
from 0

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N