Vulnerability Monitor

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CVE-2009-2422

The example code for the digest authentication functionality (http_authentication.rb) in Ruby on Rails before 2.3.3 defines an authenticate_or_request_with_http_digest block that returns nil instead of false when the user does not exist, which allows context-dependent attackers to bypass authentication for applications that are derived from this example by sending an invalid username without a password.

Published

2009-07-10T15:30:00.250

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-287

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	rubyonrails	ruby_on_rails	< 2.3.3	Yes
Operating System	apple	mac_os_x	< 10.6.3	Yes
Operating System	apple	mac_os_x	10.5.8	Yes
Operating System	apple	mac_os_x_server	< 10.6.3	Yes
Operating System	apple	mac_os_x_server	10.5.8	Yes

References

http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html Mailing List ([email protected])
http://n8.tumblr.com/post/117477059/security-hole-found-in-rails-2-3s Exploit, Patch ([email protected])
http://secunia.com/advisories/35702 Broken Link, Vendor Advisory ([email protected])
http://support.apple.com/kb/HT4077 Third Party Advisory ([email protected])
http://weblog.rubyonrails.org/2009/6/3/security-problem-with-authenticate_with_http_digest Patch ([email protected])
http://www.securityfocus.com/bid/35579 Broken Link, Patch, Third Party Advisory, VDB Entry ([email protected])
http://www.vupen.com/english/advisories/2009/1802 Broken Link, Patch, Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/51528 Third Party Advisory, VDB Entry ([email protected])
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://n8.tumblr.com/post/117477059/security-hole-found-in-rails-2-3s Exploit, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/35702 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://support.apple.com/kb/HT4077 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://weblog.rubyonrails.org/2009/6/3/security-problem-with-authenticate_with_http_digest Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/35579 Broken Link, Patch, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/1802 Broken Link, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/51528 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)