CVE-2019-16255

HIGHScheduled

Published:Nov 26, 2019(6 years ago)

Modified:Nov 21, 2024

Remote ExploitNo Auth RequiredNo Interaction

Vulnerability Description

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.

Attack Characteristics

Network AccessHigh ComplexityNo Auth NeededNo User Interaction

🤖

AI analysis not yet available

Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.

No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

Vendor	Product	Versions	Fixed In
ruby-lang	ruby	2.4.0 - 2.4.7	-
ruby-lang	ruby	2.5.0 - 2.5.6	-
ruby-lang	ruby	2.6.0 - 2.6.4

Timeline

Published
CVE disclosed publicly
Nov 26, 20196 years ago
Last Modified
Most recent update
Nov 21, 20241 year ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041....Third Party Advisory
https://hackerone.com/reports/327512Exploit
https://lists.debian.org/debian-lts-announce/2019/11/msg00025.htmlMailing List

CVSS Score

v3.1

8.1/ 10.0

HIGH

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

At a Glance

Affected Products

References

ruby-lang / ruby

https://lists.debian.org/debian-lts-announce/2019/12/msg00009.htmlMailing List

https://lists.debian.org/debian-lts-announce/2020/08/msg00027.htmlMailing List

https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html

https://seclists.org/bugtraq/2019/Dec/31Broken Link

https://seclists.org/bugtraq/2019/Dec/32Broken Link

https://security.gentoo.org/glsa/202003-06Third Party Advisory

https://www.debian.org/security/2019/dsa-4587Third Party Advisory

https://www.oracle.com/security-alerts/cpujan2020.htmlPatch

https://www.ruby-lang.org/ja/news/2019/10/01/code-injection-shell-test...Vendor Advisory

https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-4-8-released/Release Notes

https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-5-7-released/Release Notes

https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-6-5-released/Release Notes

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041....Third Party Advisory

https://hackerone.com/reports/327512Exploit

https://lists.debian.org/debian-lts-announce/2019/11/msg00025.htmlMailing List

https://lists.debian.org/debian-lts-announce/2019/12/msg00009.htmlMailing List

https://lists.debian.org/debian-lts-announce/2020/08/msg00027.htmlMailing List

https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html

https://seclists.org/bugtraq/2019/Dec/31Broken Link

https://seclists.org/bugtraq/2019/Dec/32Broken Link

https://security.gentoo.org/glsa/202003-06Third Party Advisory

https://www.debian.org/security/2019/dsa-4587Third Party Advisory

https://www.oracle.com/security-alerts/cpujan2020.htmlPatch

https://www.ruby-lang.org/ja/news/2019/10/01/code-injection-shell-test...Vendor Advisory

https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-4-8-released/Release Notes

https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-5-7-released/Release Notes

https://www.ruby-lang.org/ja/news/2019/10/01/ruby-2-6-5-released/Release Notes

CVSS v3 Vector

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

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

Impact

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Impact Analysis

ConfidentialityHigh

NoneLowHigh

IntegrityHigh

NoneLowHigh

AvailabilityHigh

NoneLowHigh

CVE-2019-16255

✦ Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

Vulnerability Description