ModSecurity -- Possible DoS Vulnerability

[email protected] reports: ModSecurity is an open source, cross platform web application firewall WAF engine for Apache, IIS and Nginx. Versions up to and including 2.9.8 are vulnerable to denial of service in one special case in stable released versions: when the payload's content...

PT-2025-23533 · Unknown +4 · Modsecurity +4

Name of the Vulnerable Software and Affected Versions: ModSecurity versions prior to 2.9.10 Description: The issue is a denial of service vulnerability. It affects the sanitiseArg and its alias sanitizeArg action, which is vulnerable to adding an excessive number of arguments, leading to denial o...

BIT-MODSECURITY2-2025-27110 Libmodsecurity3 has possible bypass of encoded HTML entities

Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurit...

BIT-MODSECURITY-2025-27110 Libmodsecurity3 has possible bypass of encoded HTML entities

Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurit...

Linux Distros Unpatched Vulnerability : CVE-2025-27110

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and...

Linux Distros Unpatched Vulnerability : CVE-2022-39958

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The OWASP ModSecurity Core Rule Set CRS is affected by a response body bypass to sequentially exfiltrate small and undetectable sections of data by repeatedly...

Linux Distros Unpatched Vulnerability : CVE-2023-24021

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application Firewall bypasses and buffer over-reads on the Web...

Linux Distros Unpatched Vulnerability : CVE-2024-1019

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Linux Distros Unpatched Vulnerability : CVE-2022-39955

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The OWASP ModSecurity Core Rule Set CRS is affected by a partial rule set bypass by submitting a specially crafted HTTP Content-Type header field that indicates...

Linux Distros Unpatched Vulnerability : CVE-2021-42717

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web serve...

Linux Distros Unpatched Vulnerability : CVE-2023-38285

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Trustwave ModSecurity 3.x before 3.0.10 has Inefficient Algorithmic Complexity. CVE-2023-38285 Note that Nessus relies on the presence of the package as reporte...

Linux Distros Unpatched Vulnerability : CVE-2022-39957

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The OWASP ModSecurity Core Rule Set CRS is affected by a response body bypass. A client can issue an HTTP Accept header field containing an optional charset...

Linux Distros Unpatched Vulnerability : CVE-2022-39956

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The OWASP ModSecurity Core Rule Set CRS is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a character...

Linux Distros Unpatched Vulnerability : CVE-2023-38199

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - coreruleset aka OWASP ModSecurity Core Rule Set through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow attacker...

Linux Distros Unpatched Vulnerability : CVE-2022-48279

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall. NOTE: this is...

Linux Distros Unpatched Vulnerability : CVE-2020-22669

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Modsecurity owasp-modsecurity-crs 3.2.0 Paranoia level at PL1 has a SQL injection bypass vulnerability. Attackers can use the comment characters and variable...

The vulnerability of the Libmodsecurity3 network firewall library for protecting web applications with ModSecurity allows attackers to circumvent existing security restrictions.

The vulnerability of the Libmodsecurity3 network firewall library for protecting web applications with ModSecurity is related to incorrect processing of HTML entities during decoding. Exploiting this vulnerability allows an attacker to bypass existing security restrictions by sending HTML entitie...

UBUNTU-CVE-2025-27110

Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurit...

CVE-2025-27110 Libmodsecurity3 has possible bypass of encoded HTML entities

Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurit...

CVE-2025-27110

Libmodsecurity3 contains a vulnerability in version 3.0.13 where encoded HTML entities with leading zeroes are not decoded correctly. A fixed release is 3.0.14. Several advisories (Fedora, openSUSE/SUSE, OpenVAS/NASL entries) reference CVE-2025-27110 and mandate/update to 3.0.14 to remediate. The...