Vulnerability CVE-2013-4660
Published: 2013-06-28

Description:
The JS-YAML module before 2.0.5 for Node.js parses input without properly considering the unsafe !!js/function tag, which allows remote attackers to execute arbitrary code via a crafted string that triggers an eval operation.

See advisories in our WLB2 database:
Topic
Author
Date
High
Nodejs js-yaml load() Code Execution
joev
26.09.2013

Type:

CWE-20

 (Improper Input Validation)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Js-yaml project -> Js-yaml 

 References:
https://nealpoole.com/blog/2013/06/code-execution-via-yaml-in-js-yaml-nodejs-module/
http://portal.nodesecurity.io/advisories/js-yaml
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