Description

An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. A Cross-Site Request Forgery (CSRF) vulnerability exists in Zimbra Web Client due to the issuance of authentication tokens without CSRF protection during certain account state transitions. Specifically, tokens generated after operations such as enabling two-factor authentication or changing a password may lack CSRF enforcement. While such a token is active, authenticated SOAP requests that trigger token generation or state changes can be performed without CSRF validation. An attacker could exploit this by inducing a victim to submit crafted requests, potentially allowing sensitive account actions such as disabling two-factor authentication. The issue is mitigated by ensuring CSRF protection is consistently enforced for all issued authentication tokens.

Weaknesses 1

Affected Products 2

References 4

• wiki.zimbra.com https://wiki.zimbra.com/wiki/Security_Center
  Release NotesVendor Advisory
• wiki.zimbra.com https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.18#Security_Fixes
  Release Notes
• wiki.zimbra.com https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.13#Security_Fixes
  Release Notes
• wiki.zimbra.com https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
  Product

Remediation