CVE-2024-43405
Nuclei Newline Injection Signature Bypass Vulnerability
Description
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. CLI users are affected if they execute custom code templates from unverified sources. This includes templates authored by third parties or obtained from unverified repositories. SDK Users are affected if they are developers integrating Nuclei into their platforms, particularly if they permit the execution of custom code templates by end-users. The vulnerability is addressed in Nuclei v3.3.2. Users are strongly recommended to update to this version to mitigate the security risk. As an interim measure, users should refrain from using custom templates if unable to upgrade immediately. Only trusted, verified templates should be executed. Those who are unable to upgrade Nuclei should disable running custom code templates as a workaround.
INFO
Published Date :
Sept. 4, 2024, 4:15 p.m.
Last Modified :
Oct. 1, 2024, 3:37 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-43405.
| URL | Resource |
|---|---|
| https://github.com/projectdiscovery/nuclei/commit/0da993afe6d41b4b1b814e8fad23a2acba13c60a | Patch |
| https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-7h5p-mmpp-hgmm | Mitigation Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-43405 vulnerability anywhere in the article.
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TheCyberThrone
CVE-2025-0282: Affecting Ivanti Products
OverviewCVE-2025-0282 is a critical stack-based buffer overflow vulnerability. It impacts Ivanti Connect Secure, Ivanti Policy Secure, and Ivanti Neurons for Zero Trust Access (ZTA) gateways. This vul ... Read more
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TheCyberThrone
Moxa Routers was affected by critical vulnerabilities
IntroductionIn the realm of cybersecurity, vulnerabilities in network devices can have severe consequences, potentially exposing systems to unauthorized access and malicious attacks. Two critical vuln ... Read more
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TheCyberThrone
CISA KEV UPDATE Part I – January 2025
The US CISA has added 3 vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on the evidence of active exploitation.CVE-2024-41713: Mitel MiCollab Path Traversal VulnerabilityDe ... Read more
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TheCyberThrone
Redis was affected by CVE-2024-51741 and CVE-2024-46981
CVE-2024-51741Description:This vulnerability affects Redis, an open-source in-memory data structure store used as a database, cache, and message broker. The issue arises when an authenticated user wit ... Read more
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The Hacker News
⚡ THN Weekly Recap: Top Cybersecurity Threats, Tools and Tips [6 Jan]
Every tap, click, and swipe we make online shapes our digital lives, but it also opens doors—some we never meant to unlock. Extensions we trust, assistants we rely on, and even the codes we scan are t ... Read more
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TheCyberThrone
CVE-2024-10957: UpdraftPlus WordPress Plugin Vulnerability
CVE-2024-10957 is a high-severity vulnerability affecting the UpdraftPlus: WP Backup & Migration Plugin for WordPress. This vulnerability, present in versions up to and including 1.24.11, enables atta ... Read more
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TheCyberThrone
CVE-2024-43405 Vulnerability in Nuclei
CVE-2024-43405 is a high severity vulnerability identified in Nuclei, a widely used open-source vulnerability scanner. This vulnerability, affecting versions 3.0.0 to 3.3.1, allows attackers to bypass ... Read more
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BleepingComputer
Nuclei flaw lets malicious templates bypass signature verification
A now-fixed vulnerability in the open-source vulnerability scanner Nuclei could potentially allow attackers to bypass signature verification while sneaking malicious code into templates that execute o ... Read more
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BleepingComputer
Nuclei flaw bypasses template signature checks to execute commands
A now-fixed vulnerability in the open-source vulnerability scanner Nuclei could potentially allow attackers to bypass signature verification while sneaking malicious code into templates that execute o ... Read more
-
The Hacker News
Researchers Uncover Nuclei Vulnerability Enabling Signature Bypass and Code Execution
Vulnerability / Software Security A high-severity security flaw has been disclosed in ProjectDiscovery's Nuclei, a widely-used open-source vulnerability scanner that, if successfully exploited, could ... Read more
The following table lists the changes that have been made to the
CVE-2024-43405 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Oct. 01, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/projectdiscovery/nuclei/commit/0da993afe6d41b4b1b814e8fad23a2acba13c60a No Types Assigned https://github.com/projectdiscovery/nuclei/commit/0da993afe6d41b4b1b814e8fad23a2acba13c60a Patch Changed Reference Type https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-7h5p-mmpp-hgmm No Types Assigned https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-7h5p-mmpp-hgmm Mitigation, Third Party Advisory Added CWE NIST CWE-78 Added CPE Configuration OR *cpe:2.3:a:projectdiscovery:nuclei:*:*:*:*:*:go:*:* versions from (including) 3.0.0 up to (excluding) 3.3.2 -
CVE Received by [email protected]
Sep. 04, 2024
Action Type Old Value New Value Added Description 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. CLI users are affected if they execute custom code templates from unverified sources. This includes templates authored by third parties or obtained from unverified repositories. SDK Users are affected if they are developers integrating Nuclei into their platforms, particularly if they permit the execution of custom code templates by end-users. The vulnerability is addressed in Nuclei v3.3.2. Users are strongly recommended to update to this version to mitigate the security risk. As an interim measure, users should refrain from using custom templates if unable to upgrade immediately. Only trusted, verified templates should be executed. Those who are unable to upgrade Nuclei should disable running custom code templates as a workaround. Added Reference GitHub, Inc. https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-7h5p-mmpp-hgmm [No types assigned] Added Reference GitHub, Inc. https://github.com/projectdiscovery/nuclei/commit/0da993afe6d41b4b1b814e8fad23a2acba13c60a [No types assigned] Added CWE GitHub, Inc. CWE-78 Added CVSS V3.1 GitHub, Inc. AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-43405 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-43405
weaknesses.