Plone join_form and prefs_groups_overview forms cross-site request forgery
| plone-joinform-csrf (41263) |  Medium Risk |
Description:
Plone is vulnerable to a cross-site request forgery, caused by improper validation of user-supplied input. By persuading a victim with administrative privileges to visit a specially-crafted Web site, a remote attacker could send a malformed POST request to the join_form or prefs_groups_overview form to cause the victim to create new accounts, change account privileges, and possibly perform other arbitrary administrative tasks. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning and other malicious activities.
Platforms Affected:
- Plone, Plone 3.0.6 and prior
Remedy:
Apply the patch for this vulnerability (Hotfix 20080314), available from the Plone Web site. See References.
Consequences:
Gain Access
References:
- Plone Web site, Plone Hotfix 20080314 (Unreleased) at http://plone.org/products/plone-hotfix/releases/20080314.
- ProCheckUp Web site, The Art of Plowning at http://www.procheckup.com/Hacking_Plone_CMS.pdf.
- CVE-2008-0164: Multiple cross-site request forgery (CSRF) vulnerabilities in Plone CMS 3.0.5 and 3.0.6 allow remote attackers to (1) add arbitrary accounts via the join_form page and (2) change the privileges of arbitrary groups via the prefs_groups_overview page.
- SA29361: Plone Cross-Site Request Forgery Vulnerability
Reported:
Mar 11, 2008
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