VulnerabilityModified
CVE-2019-16255
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.
HIGH 8.1EPSS 4.19%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.19% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- ruby-lang/ruby · debian/debian linux · opensuse/leap · oracle/graalvm
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.htmlThird Party Advisory
- https://hackerone.com/reports/327512Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/11/msg00025.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/12/msg00009.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00027.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
- https://seclists.org/bugtraq/2019/Dec/31Broken Link, Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Dec/32Broken Link, Mailing List, Third Party Advisory
- 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, Third Party Advisory
- https://www.ruby-lang.org/ja/news/2019/10/01/code-injection-shell-test-cve-2019-16255/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.htmlThird Party Advisory
- https://hackerone.com/reports/327512Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/11/msg00025.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/12/msg00009.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00027.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
- https://seclists.org/bugtraq/2019/Dec/31Broken Link, Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Dec/32Broken Link, Mailing List, Third Party Advisory
- 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, Third Party Advisory
- https://www.ruby-lang.org/ja/news/2019/10/01/code-injection-shell-test-cve-2019-16255/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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.