CVE-2015-3649 Information

Description

The open-uri-cached rubygem allows local users to execute arbitrary Ruby code by creating a directory under /tmp containing \openuri-\ followed by a crafted UID and putting Ruby code in said directory once a meta file is created.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.benjaminfleischer.com/2013/03/20/yaml-and-security-in-ruby/ http://www.openwall.com/lists/oss-security/2015/05/06/2 http://www.securityfocus.com/bid/74469 https://github.com/tigris/open-uri-cached/blob/master/lib/open-uri/cached.rbL115 https://github.com/tigris/open-uri-cached/blob/master/lib/open-uri/cached.rbL25 https://github.com/tigris/open-uri-cached/blob/master/lib/open-uri/cached.rbL39

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8