siyuan-note SiYuan up to 3.1.15 Environment Variable renderSprig special elements used in a template engine

Summaryinfo

A vulnerability described as problematic has been identified in siyuan-note SiYuan up to 3.1.15. This impacts an unknown function of the file /api/template/renderSprig of the component Environment Variable Handler. Such manipulation leads to improper neutralization of special elements used in a template engine. This vulnerability is listed as CVE-2024-55660. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in siyuan-note SiYuan up to 3.1.15 and classified as problematic. Affected by this issue is an unknown code block of the file /api/template/renderSprig of the component Environment Variable Handler. The manipulation with an unknown input leads to a improper neutralization of special elements used in a template engine vulnerability. Using CWE to declare the problem leads to CWE-1336. The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine. Impacted is confidentiality. CVE summarizes:

SiYuan is a personal knowledge management system. Prior to version 3.1.16, SiYuan's `/api/template/renderSprig` endpoint is vulnerable to Server-Side Template Injection (SSTI) through the Sprig template engine. Although the engine has limitations, it allows attackers to access environment variables. Version 3.1.16 contains a patch for the issue.

The advisory is available at github.com. This vulnerability is handled as CVE-2024-55660 since 12/10/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1221 by the MITRE ATT&CK project.

Upgrading to version 3.1.16 eliminates this vulnerability. Applying the patch e70ed57f6e4852e2bd702671aeb8eb3a47a36d71 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• siyuan-note

Name

• SiYuan

Version

• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.1.6
• 3.1.7
• 3.1.8
• 3.1.9
• 3.1.10
• 3.1.11
• 3.1.12
• 3.1.13
• 3.1.14
• 3.1.15

License

• open-source

Website

• Product: https://github.com/siyuan-note/siyuan/

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