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CVE-2019-16255

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Date: November 26, 2019

Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows code injection if the first argument (aka the "command" argument) to Shell#[] or Shell#test in lib/shell.rb is untrusted data. An attacker can exploit this to call an arbitrary Ruby method.

Language: Ruby

Severity Score

Related Resources (21)

https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-4-8-released/
https://hackerone.com/reports/327512
https://lists.debian.org/debian-lts-announce/2019/12/msg00009.html
https://access.redhat.com/security/cve/CVE-2019-16255
https://www.ruby-lang.org/ja/news/2019/10/01/code-injection-shell-test-cve-2019-16255/
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-16255
https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-6-5-released/
https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-5-7-released/
https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
https://security-tracker.debian.org/tracker/CVE-2019-16255
https://nvd.nist.gov/vuln/detail/CVE-2019-16255
https://security.alpinelinux.org/vuln/CVE-2019-16255
https://seclists.org/bugtraq/2019/Dec/31
https://seclists.org/bugtraq/2019/Dec/32
https://www.debian.org/security/2019/dsa-4587
https://lists.debian.org/debian-lts-announce/2019/11/msg00025.html
https://security.gentoo.org/glsa/202003-06
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html
https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html
https://www.oracle.com/security-alerts/cpujan2020.html
https://www.mend.io/vulnerability-database/CVE-2019-16255

Severity Score

Weakness Type (CWE)

Code Injection

CWE-94

Injection

CWE-74

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV):
Access Complexity (AC):
Authentication (AU):
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE
Additional information:

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