Vulnerability CVE-2013-0269
Published: 2013-02-12   Modified: 2013-02-13

Description:
The JSON gem before 1.5.5, 1.6.x before 1.6.8, and 1.7.x before 1.7.7 for Ruby allows remote attackers to cause a denial of service (resource consumption) or bypass the mass assignment protection mechanism via a crafted JSON document that triggers the creation of arbitrary Ruby symbols or certain internal objects, as demonstrated by conducting a SQL injection attack against Ruby on Rails, aka "Unsafe Object Creation Vulnerability."

Type:

CWE-20

 (Improper Input Validation)

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
Rubygems -> Json gem 

 References:
http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html
http://lists.opensuse.org/opensuse-updates/2013-04/msg00034.html
http://rhn.redhat.com/errata/RHSA-2013-0686.html
http://rhn.redhat.com/errata/RHSA-2013-0701.html
http://rhn.redhat.com/errata/RHSA-2013-1028.html
http://rhn.redhat.com/errata/RHSA-2013-1147.html
http://spreecommerce.com/blog/multiple-security-vulnerabilities-fixed
http://weblog.rubyonrails.org/2013/2/11/SEC-ANN-Rails-3-2-12-3-1-11-and-2-3-17-have-been-released/
http://www.openwall.com/lists/oss-security/2013/02/11/7
http://www.openwall.com/lists/oss-security/2013/02/11/8
http://www.securityfocus.com/bid/57899
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.426862
http://www.ubuntu.com/usn/USN-1733-1
http://www.zweitag.de/en/blog/ruby-on-rails-vulnerable-to-mass-assignment-and-sql-injection
https://exchange.xforce.ibmcloud.com/vulnerabilities/82010
https://groups.google.com/group/rubyonrails-security/msg/d8e0db6e08c81428?dmode=source&output=gplain
https://puppet.com/security/cve/cve-2013-0269
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