IBM SAN Volume Controller, IBM Storwize, IBM Spectrum Virtualize and IBM FlashSystem products ( 6.1, 6.2, 6.3, 6.4, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.6.1, 7.7, 7.7.1, 7.8, 7.8.1, 8.1, and 8.1.1) are vulnerable to cross-site request forgery which could allow an attacker to execute malicious and unauthorized actions transmitted from a user that the website trusts. IBM X-Force ID: 139474.
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 |
| Storwize_v7000_firmware |
Ibm |
6.1.0.0 (including) |
7.5.0.14 (excluding) |
| Storwize_v7000_firmware |
Ibm |
7.7.0.0 (including) |
7.7.1.9 (excluding) |
| Storwize_v7000_firmware |
Ibm |
7.8.0.0 (including) |
7.8.1.6 (excluding) |
| Storwize_v7000_firmware |
Ibm |
8.1.1.0 (including) |
8.1.1.2 (excluding) |
| Storwize_v7000_firmware |
Ibm |
8.1.2.0 (including) |
8.1.2.1 (excluding) |
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