Vulnerability identifier: #VU39950
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Ruby
Universal components / Libraries /
Scripting languages
Vendor: Ruby
Description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Type confusion exists in two methods of Ruby's WIN32OLE class, ole_invoke and ole_query_interface. Attacker passing different type of object than this assumed by developers can cause arbitrary code execution. <a href="http://cwe.mitre.org/data/definitions/843.html">CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')</a>
Mitigation
Install update from vendor's website.
Vulnerable software versions
Ruby: 2.2.2 - 2.3.0
External links
http://www.talosintelligence.com/reports/TALOS-2016-0029/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.