CVE Vulnerabilities

CVE-2018-18696

Cross-Site Request Forgery (CSRF)

Published: Dec 28, 2018 | Modified: May 15, 2019
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

** DISPUTED ** main.aspx in Microstrategy Analytics 10.4.0026.0049 and earlier has CSRF. NOTE: The vendor claims that documentation for preventing a CSRF attack has been provided (https://community.microstrategy.com/s/article/KB37643-New-security-feature-introduced-in-MicroStrategy-Web-9-0?language=en_US) and disagrees that this issue is a vulnerability. They also claim that MicroStrategy was never properly informed of this issue via normal support channels or their vulnerability reporting page on their website, so they were unable to evaluate the report or explain how this is something their customers view as a feature and not a security vulnerability.

Weakness

The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

Affected Software

Name Vendor Start Version End Version
Microstrategy Microstrategy * 10.4.0026.0049

Potential Mitigations

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, use anti-CSRF packages such as the OWASP CSRFGuard. [REF-330]
  • Another example is the ESAPI Session Management control, which includes a component for CSRF. [REF-45]
  • Use the “double-submitted cookie” method as described by Felten and Zeller:
  • When a user visits a site, the site should generate a pseudorandom value and set it as a cookie on the user’s machine. The site should require every form submission to include this value as a form value and also as a cookie value. When a POST request is sent to the site, the request should only be considered valid if the form value and the cookie value are the same.
  • Because of the same-origin policy, an attacker cannot read or modify the value stored in the cookie. To successfully submit a form on behalf of the user, the attacker would have to correctly guess the pseudorandom value. If the pseudorandom value is cryptographically strong, this will be prohibitively difficult.
  • This technique requires Javascript, so it may not work for browsers that have Javascript disabled. [REF-331]

References