CVE-2021-31799: Command Injection
First published: Sun May 02 2021(Updated: )
An operating system command injection flaw was found in RDoc. Using the rdoc command to generate documentation for a malicious Ruby source code could lead to execution of arbitrary commands with the privileges of the user running rdoc.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/rh-ruby27-ruby | <0:2.7.4-130.el7 | 0:2.7.4-130.el7 |
| redhat/rh-ruby30-ruby | <0:3.0.2-148.el7 | 0:3.0.2-148.el7 |
| redhat/rh-ruby26-ruby | <0:2.6.9-120.el7 | 0:2.6.9-120.el7 |
| redhat/rubygem-rdoc | <6.3.1 | 6.3.1 |
| redhat/ruby | <3.0.2 | 3.0.2 |
| redhat/ruby | <2.7.4 | 2.7.4 |
| redhat/ruby | <2.6.8 | 2.6.8 |
| debian/ruby2.7 | 2.7.4-1+deb11u1 2.7.4-1+deb11u2 | |
| rubygems/rdoc | >=6.3.0<6.3.1 | 6.3.1 |
| rubygems/rdoc | >=6.2.0<6.2.1.1 | 6.2.1.1 |
| rubygems/rdoc | >=3.11<6.1.2.1 | 6.1.2.1 |
| Debian GNU/Linux | =9.0 | |
| Debian GNU/Linux | =10.0 | |
| All of | ||
| Ruby | <=3.0.1 | |
| Ruby RDoc | >=3.11<6.3.1 | |
| Oracle JD Edwards EnterpriseOne Tools | <9.2.6.1 | |
| Ruby RDoc | >=3.11<6.3.1 | |
| Ruby | <=3.0.1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2021-31799 https://nvd.nist.gov/vuln/detail/CVE-2021-31799 https://www.ruby-lang.org/en/news/2021/05/02/os-command-injection-in-rdoc/
- https://bugzilla.redhat.com/show_bug.cgi?id=1980132
- https://access.redhat.com/errata/RHSA-2021:3020
- https://access.redhat.com/errata/RHSA-2022:0543
- https://access.redhat.com/errata/RHSA-2022:0672
- https://access.redhat.com/errata/RHSA-2022:0581
- https://access.redhat.com/errata/RHSA-2022:0582
- https://access.redhat.com/errata/RHSA-2022:0544
- https://access.redhat.com/errata/RHSA-2021:3559
- https://access.redhat.com/errata/RHSA-2021:3982
- https://access.redhat.com/errata/RHSA-2022:0708
- https://access.redhat.com/security/cve/cve-2021-31799
- https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html
- https://security-tracker.debian.org/tracker/CVE-2021-31799
- https://security.netapp.com/advisory/ntap-20210902-0004/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.ruby-lang.org/en/news/2021/05/02/os-command-injection-in-rdoc/
- https://security.gentoo.org/glsa/202401-05
- https://github.com/ruby/rdoc/commit/a7f5d6ab88632b3b482fe10611382ff73d14eed7
- https://www.ruby-lang.org/en/news/2021/07/07/ruby-3-0-2-released/
- https://www.ruby-lang.org/en/news/2021/07/07/ruby-2-7-4-released/
- https://www.ruby-lang.org/en/news/2021/07/07/ruby-2-6-8-released/
- https://github.com/ruby/rdoc/commit/4a8b7bed7cd5647db92c620bc6f33e4c309d2212
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1980570
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1980571
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1980567
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1980568
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1980569
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1980132#c9
- https://nvd.nist.gov/vuln/detail/CVE-2021-31799
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rdoc/CVE-2021-31799.yml
- https://github.com/advisories/GHSA-ggxm-pgc9-g7fp (Advisory)
- https://github.com/ruby/ruby/commit/b1c73f239fe9af97de837331849f55d67c27561e
- https://github.com/ruby/ruby/commit/483f303d02e768b69e476e0b9be4ab2f26389522
- https://security.netapp.com/advisory/ntap-20210902-0004
- https://www.ruby-lang.org/en/news/2021/05/02/os-command-injection-in-rdoc
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2021-31799?
CVE-2021-31799 is an operating system command injection vulnerability found in RDoc.
How does CVE-2021-31799 impact Ruby?
CVE-2021-31799 allows an attacker to execute arbitrary commands with the privileges of the user running rdoc in Ruby through version 3.0.1.
What is the severity of CVE-2021-31799?
CVE-2021-31799 has a severity rating of 7, indicating a high severity vulnerability.
How do I fix CVE-2021-31799?
To fix CVE-2021-31799, update RDoc to version 6.3.1 or higher.
Where can I find more information about CVE-2021-31799?
You can find more information about CVE-2021-31799 in the references provided: [Link 1](https://www.ruby-lang.org/en/news/2021/05/02/os-command-injection-in-rdoc/), [Link 2](https://github.com/ruby/rdoc/commit/a7f5d6ab88632b3b482fe10611382ff73d14eed7), [Link 3](https://www.ruby-lang.org/en/news/2021/07/07/ruby-3-0-2-released/).
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