CVSS: 7.4EPSS: 0%CPEs: 1EXPL: 0CVE-2024-43405 – Nuclei Template Signature Verification Bypass
https://notcve.org/view.php?id=CVE-2024-43405
Nuclei is a vulnerability scanner powered by YAML based templates. Starting in version 3.0.0 and prior to version 3.3.2, a vulnerability in Nuclei's template signature verification system could allow an attacker to bypass the signature check and possibly execute malicious code via custom code template. The vulnerability is present in the template signature verification process, specifically in the `signer` package. The vulnerability stems from a discrepancy between how the signature verification process and the YAML parser handle newline characters, combined with the way multiple signatures are processed. This allows an attacker to inject malicious content into a template while maintaining a valid signature for the benign part of the template. • https://github.com/projectdiscovery/nuclei/commit/0da993afe6d41b4b1b814e8fad23a2acba13c60a https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-7h5p-mmpp-hgmm • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •
CVSS: 7.4EPSS: 0%CPEs: 1EXPL: 0CVE-2024-40641 – Unsigned code template execution through workflows in projectdiscovery/nuclei
https://notcve.org/view.php?id=CVE-2024-40641
Nuclei is a fast and customizable vulnerability scanner based on simple YAML based DSL. In affected versions it a way to execute code template without -code option and signature has been discovered. Some web applications inherit from Nuclei and allow users to edit and execute workflow files. In this case, users can execute arbitrary commands. (Although, as far as I know, most web applications use -t to execute). • https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-c3q9-c27p-cw9h • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •
CVSS: 7.4EPSS: 0%CPEs: 1EXPL: 0CVE-2024-27920 – Unsigned code template execution through workflows in projectdiscovery/nuclei
https://notcve.org/view.php?id=CVE-2024-27920
projectdiscovery/nuclei is a fast and customisable vulnerability scanner based on simple YAML based DSL. A significant security oversight was identified in Nuclei v3, involving the execution of unsigned code templates through workflows. This vulnerability specifically affects users utilizing custom workflows, potentially allowing the execution of malicious code on the user's system. This advisory outlines the impacted users, provides details on the security patch, and suggests mitigation strategies. The vulnerability is addressed in Nuclei v3.2.0. • https://docs.projectdiscovery.io/templates/protocols/code https://docs.projectdiscovery.io/templates/reference/template-signing https://docs.projectdiscovery.io/templates/workflows/overview https://github.com/projectdiscovery/nuclei/pull/4822 https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-w5wx-6g2r-r78q • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •