Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Title OpenCA allows Cross site request forgery (XSRF)
Name VU#264385 First vendor Publication 2008-02-22
Vendor VU-CERT Last vendor Modification 2008-02-25
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Vulnerability Note VU#264385

OpenCA allows Cross site request forgery (XSRF)


OpenCA contains a cross site request forgery (XSRF) vulnerability that may allow an attacker to leverage an administrator's creditials to exectue activities on the Certification Authority.

I. Description

The OpenCA PKI Development Project is an open source out-of-the-box Certification Authority (CA). OpenCA includes various web forms for executing requests and other activities on the CA such as digital certificate issuance. A cross site request forgery (XSRF) vulnerability exists in the way OpenCA processes requests executed via various forms. By manipulating an administrator who is authenticated to the CA via a session cookie to follow a tag that contains CA commands, an attacker may be able to successfully execute the commands on the CA.

II. Impact

An authenticated user can be manipulated into executing activities on the CA - such as digital certificate issuance - without knowledge or consent.

III. Solution

This vulnerability has been addressed in Security Advisory AKLINK-SA-2008-001.

Systems Affected

VendorStatusDate Updated
Open CAVulnerable15-Feb-2008




This vulnerability was reported by Alexander Klink of Cynops GmbH.

This document was written by Joseph W. Pruszynski.

Other Information

Date Public02/13/2008
Date First Published02/22/2008 04:41:00 PM
Date Last Updated02/25/2008
CERT Advisory 
CVE NameCVE-2008-0556
US-CERT Technical Alerts 
Document Revision15

Original Source

Url : http://www.kb.cert.org/vuls/id/264385

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-352 Cross-Site Request Forgery (CSRF) (CWE/SANS Top 25)
50 % CWE-264 Permissions, Privileges, and Access Controls

Open Source Vulnerability Database (OSVDB)

Id Description
41558 OpenCA RAServer CSRF