SPIP 3.1.2 Cross Site Request Forgery
Posted on 20 October 2016
## SPIP 3.1.2 Exec Code Cross-Site Request Forgery (CVE-2016-7980) ### Product Description SPIP is a publishing system for the Internet, which put importance on collaborative working, multilingual environments and ease of use. It is free software, distributed under the GNU/GPL licence. ### Vulnerability Description The vulnerable request to `valider_xml` (see: *SPIP 3.1.2 Template Compiler/Composer PHP Code Execution - CVE-2016-7998*) is vulnerable to Cross-Site Request Forgery, allowing the execution of the CVE-2016-7998 attack by tricking an administrator to open the malicious link. **Access Vector**: remote **Security Risk**: high **Vulnerability**: CWE-352 **CVSS Base Score**: 8.3 (High) **CVE-ID**: CVE-2016-7980 ### Proof of Concept http://spip-dev.srv/ecrire/?exec=valider_xml&var_url=/tmp/directory&ext=html ### Timeline (dd/mm/yyyy) * 15/09/2016 : Initial discovery * 26/09/2016 : Contact with SPIP Team * 27/09/2016 : Answer from SPIP Team, sent advisory details * 28/09/2016 : Fixes issued for CSRF * 30/09/2016 : SPIP 3.1.3 Released ### Fixes * https://core.spip.net/projects/spip/repository/revisions/23200 * https://core.spip.net/projects/spip/repository/revisions/23201 * https://core.spip.net/projects/spip/repository/revisions/23202 ### Affected versions * Version <= 3.1.2 ### Credits * Nicolas CHATELAIN, Sysdream (n.chatelain -at- sysdream -dot- com) -- SYSDREAM Labs <labs@sysdream.com> GPG : 47D1 E124 C43E F992 2A2E 1551 8EB4 8CD9 D5B2 59A1 * Website: https://sysdream.com/ * Twitter: @sysdream
