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CVE-2024-1019

WAF bypass of the ModSecurity v3 release line

Published: Jan 30, 2024Updated: Jul 3, 2025 Sources: CVE List NVD BDUCWE-20
NVD MITRE
8.6CVSSHIGH
EPSS Score
0.7%
Top 52.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
ModSecurityOWASP Foundation, Inc.
Mixed
Security Products / vuln-mgmt-scanner
libModSecurityTrustwave Holdings, Inc.
Mixed
Networking Infrastructure / firewall
SolidWall WAFООО «СолидСофт»
Mixed
Networking Infrastructure / firewall
modsecurityowasp
Mixed
Networking Infrastructure / firewall
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
owasp foundation, inc.oss-projectSecurity Products
trustwave holdings, inc.commercialNetworking Infrastructureaka trustwave
ооо «солидсофт»commercialRUNetworking Infrastructure
owasposs-projectUSNetworking Infrastructureaka owasp modsecurity core rule set, modsecurity, modsecurity-crs
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://owasp.org/www-project-modsecurity/tab_cves#
owasp.org
https://security-tracker.debian.org/tracker/CVE-2024-1019
security-tracker.debian.org
https://vuldb.com/?id.252406
vuldb.com
and 4 more references View all →

Timeline

Published
Jan 30, 2024
Last Updated
Jul 3, 2025

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