CVE-2018-1000079 Information

Description

RubyGems version Ruby 2.2 series: 2.2.9 and earlier Ruby 2.3 series: 2.3.6 and earlier Ruby 2.4 series: 2.4.3 and earlier Ruby 2.5 series: 2.5.0 and earlier prior to trunk revision 62422 contains a Directory Traversal vulnerability in gem installation that can result in the gem could write to arbitrary filesystem locations during installation. This attack appear to be exploitable via the victim must install a malicious gem. This vulnerability appears to have been fixed in 2.7.6.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Reference

http://blog.rubygems.org/2018/02/15/2.7.6-released.html http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html https://access.redhat.com/errata/RHSA-2018:3729 https://access.redhat.com/errata/RHSA-2018:3730 https://access.redhat.com/errata/RHSA-2018:3731 https://access.redhat.com/errata/RHSA-2019:2028 https://access.redhat.com/errata/RHSA-2020:0542 https://access.redhat.com/errata/RHSA-2020:0591 https://access.redhat.com/errata/RHSA-2020:0663 https://github.com/rubygems/rubygems/commit/666ef793cad42eed96f7aee1cdf77865db921099 https://github.com/rubygems/rubygems/commit/f83f911e19e27cbac1ccce7471d96642241dd759 https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html https://usn.ubuntu.com/3621-1/ https://www.debian.org/security/2018/dsa-4219 https://www.debian.org/security/2018/dsa-4259

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.5