Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS03bTJ3LTlndzctYzN4cM31tA

open-uri-cached Gem for Ruby Unsafe Temporary File Creation Enables Code Execution

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 metafile is created.

Permalink: https://github.com/advisories/GHSA-7m2w-9gw7-c3xp
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS03bTJ3LTlndzctYzN4cM31tA
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 2 years ago
Updated: 10 months ago

CVSS Score: 7.8
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-7m2w-9gw7-c3xp, CVE-2015-3649
References:

• https://nvd.nist.gov/vuln/detail/CVE-2015-3649
• http://www.benjaminfleischer.com/2013/03/20/yaml-and-security-in-ruby/
• http://www.openwall.com/lists/oss-security/2015/05/06/2
• https://github.com/tigris/open-uri-cached/issues/8
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/open-uri-cached/CVE-2015-3649.yml
• http://seclists.org/oss-sec/2015/q2/373
• https://github.com/tigris/open-uri-cached/blob/master/lib/open-uri/cached.rb
• https://web.archive.org/web/20210119122105/http://www.securityfocus.com/bid/74469
• https://github.com/advisories/GHSA-7m2w-9gw7-c3xp

Repository: https://github.com/tigris/open-uri-cached
Blast Radius: 22.0

Affected Packages