Vulnerability CVE-2013-0285
Published: 2013-04-09   Modified: 2013-04-10

Description:
The nori gem 2.0.x before 2.0.2, 1.1.x before 1.1.4, and 1.0.x before 1.0.3 for Ruby does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion, a similar vulnerability to CVE-2013-0156.

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Ruby-nori gem -> 1.0.0 
Ruby-nori gem -> 1.0.1 
Ruby-nori gem -> 1.0.2 
Ruby-nori gem -> 1.1.0 
Ruby-nori gem -> 1.1.1 
Ruby-nori gem -> 1.1.2 
Ruby-nori gem -> 1.1.3 
Ruby-nori gem -> 2.0.0 
Ruby-nori gem -> 2.0.1 
Nori gem project -> Nori gem 

 References:
https://support.cloud.engineyard.com/entries/22915701-january-14-2013-security-vulnerabilities-httparty-extlib-crack-nori-update-these-gems-immediately
http://seclists.org/oss-sec/2013/q1/304
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