CVE-2010-0540

Cross-site request forgery (CSRF) vulnerability in the web interface in CUPS before 1.4.4, as used on Apple Mac OS X 10.5.8, Mac OS X 10.6 before 10.6.4, and other platforms, allows remote attackers to hijack the authentication of administrators for requests that change settings.

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
Mac_os_x	Apple	10.5.8 (including)	10.5.8 (including)
Mac_os_x	Apple	10.6.0 (including)	10.6.0 (including)
Mac_os_x	Apple	10.6.1 (including)	10.6.1 (including)
Mac_os_x	Apple	10.6.2 (including)	10.6.2 (including)
Mac_os_x	Apple	10.6.3 (including)	10.6.3 (including)
Mac_os_x_server	Apple	10.5.8 (including)	10.5.8 (including)
Mac_os_x_server	Apple	10.6.0 (including)	10.6.0 (including)
Mac_os_x_server	Apple	10.6.1 (including)	10.6.1 (including)
Mac_os_x_server	Apple	10.6.2 (including)	10.6.2 (including)
Mac_os_x_server	Apple	10.6.3 (including)	10.6.3 (including)
Cups	Ubuntu	jaunty	*
Cups	Ubuntu	karmic	*
Cups	Ubuntu	lucid	*
Cups	Ubuntu	upstream	*
Cupsys	Ubuntu	dapper	*
Cupsys	Ubuntu	hardy	*
Cupsys	Ubuntu	upstream	*
Red Hat Enterprise Linux 3	RedHat	cups-1:1.1.17-13.3.65	*
Red Hat Enterprise Linux 4	RedHat	cups-1:1.1.22-0.rc1.9.32.el4_8.6	*
Red Hat Enterprise Linux 5	RedHat	cups-1:1.3.7-18.el5_5.4	*

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]

NVD	https://nvd.nist.gov/vuln/detail/CVE-2010-0540
CWE	https://cwe.mitre.org/data/definitions/352.html

Cross-Site Request Forgery (CSRF)

Weakness

Affected Software

Potential Mitigations

References

CVE-2010-0540

Cross-Site Request Forgery (CSRF)

Weakness

Affected Software

Potential Mitigations

Related Attack Patterns

References