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KeystoneJS 4.0.0-beta.5 Unauthenticated CSV Injection Vulnerability
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# Exploit Title: KeystoneJS 4.0.0-beta.5 Unauthenticated CSV Injection # Vendor Homepage: http://keystonejs.com/ # Exploit Author: Ishaq Mohammed # Contact: https://twitter.com/security_prince # Website: https://about.me/security-prince # Category: WEBAPPS # Platform: Node.js # CVE: CVE-2017-15879 Vendor Description: KeystoneJS is a powerful Node.js content management system and web app framework built on express and mongoose. Keystone makes it easy to create sophisticated web sites and apps, and comes with a beautiful auto-generated Admin UI. Source: https://github.com/keystonejs/keystone/blob/master/README.md Technical Details and Exploitation: CSV Injection (aka Excel Macro Injection or Formula Injection) exists in admin/server/api/download.js and lib/list/getCSVData.js in KeystoneJS before 4.0.0-beta.7 via a value that is mishandled in a CSV export. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15879 Proof of Concept: 1.Go to Contact Us page and insert the below payload in the Name Field. Payload: @SUM(1+1)*cmd|' /C calc'!A0 2. Login as Admin 3. Now Navigate to Enquiries page and check the entered payload. 4. Download as .csv, once done open it in excel and observe that calculator application gets open. Solution: The issues have been fixed and the vendor has released the patches https://github.com/keystonejs/keystone/pull/4478/commits/1b791d55839ebf434e104cc9936ccb8c29019231 Reference: https://github.com/keystonejs/keystone/pull/4478 https://securelayer7.net/download/pdf/KeystoneJS-Pentest-Report-SecureLayer7.pdf -- Best Regards, Ishaq Mohammed https://about.me/security-prince # 0day.today [2024-11-16] #