CVE-2019-16255
HIGH severity · CVSS 8.1 · Code injection
8.1CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://hackerone.com/reports/327512 ↗
Additional information
- NVD record
- https://hackerone.com/reports/327512Patch
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2019/11/msg00025.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2019/12/msg00009.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00027.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
- https://seclists.org/bugtraq/2019/Dec/31Advisory
- https://seclists.org/bugtraq/2019/Dec/32Advisory