SB2015062405 - Security Features in Ruby
Published: June 24, 2015 Updated: July 28, 2020
Security Bulletin ID
SB2015062405
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security Features (CVE-ID: CVE-2015-3900)
The vulnerability allows a remote non-authenticated attacker to manipulate data.
RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a "DNS hijack attack."
Remediation
Install update from vendor's website.
References
- http://blog.rubygems.org/2015/05/14/CVE-2015-3900.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163502.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163600.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/164236.html
- http://rhn.redhat.com/errata/RHSA-2015-1657.html
- http://www.openwall.com/lists/oss-security/2015/06/26/2
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- http://www.securityfocus.com/bid/75482
- https://puppet.com/security/cve/CVE-2015-3900
- https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-007/?fid=6356
- https://www.trustwave.com/Resources/SpiderLabs-Blog/Attacking-Ruby-Gem-Security-with-CVE-2015-3900/