CVE-2024-27281
An issue was discovered in RDoc 6.3.3 through 6.6.2, as distributed in Ruby 3.x through 3.3.0. When parsing .rdoc_options (used for configuration in RDoc) as a YAML file, object injection and resultant remote code execution are possible because there are no restrictions on the classes that can be restored. (When loading the documentation cache, object injection and resultant remote code execution are also possible if there were a crafted cache.) The main fixed version is 6.6.3.1. For Ruby 3.0 users, a fixed version is rdoc 6.3.4.1. For Ruby 3.1 users, a fixed version is rdoc 6.4.1.1. For Ruby 3.2 users, a fixed version is rdoc 6.5.1.1.
02 / AFFECTED SOFTWARE
Affected packages
6 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
An issue was discovered in RDoc 6.3.3 through 6.6.2, as distributed in Ruby 3.x through 3.3.0. When parsing `.rdoc_options` (used for configuration in RDoc) as a YAML file, object injection and resultant remote code execution are possible because there are no restrictions on the classes that can be restored. When loading the documentation cache, object injection and resultant remote code execution are also possible if there were a crafted cache. We recommend to update the RDoc gem to version 6.6.3.1 or later. In order to ensure compatibility with bundled version in older Ruby series, you may update as follows instead: * For Ruby 3.0 users: Update to `rdoc` 6.3.4.1 * For Ruby 3.1 users: Update to `rdoc` 6.4.1.1 * For Ruby 3.2 users: Update to `rdoc` 6.5.1.1 You can use `gem update rdoc` to update it. If you are using bundler, please add `gem "rdoc", ">= 6.6.3.1"` to your `Gemfile`. Note: 6.3.4, 6.4.1, 6.5.1 and 6.6.3 have a incorrect fix. We recommend to upgrade 6.3.4.1, 6.4.1.1, 6.5.1.1 and 6.6.3.1 instead of them.
An issue was discovered in RDoc 6.3.3 through 6.6.2, as distributed in Ruby 3.x through 3.3.0. When parsing .rdoc_options (used for configuration in RDoc) as a YAML file, object injection and resultant remote code execution are possible because there are no restrictions on the classes that can be restored. (When loading the documentation cache, object injection and resultant remote code execution are also possible if there were a crafted cache.) The main fixed version is 6.6.3.1. For Ruby 3.0 users, a fixed version is rdoc 6.3.4.1. For Ruby 3.1 users, a fixed version is rdoc 6.4.1.1. For Ruby 3.2 users, a fixed version is rdoc 6.5.1.1.
05 / REFERENCES
Further evidence
- https://github.com/ruby/rdoc
- https://github.com/ruby/rdoc/commit/1254b0066f312ddbf7fae7a195e66ce5b3bc6656
- https://github.com/ruby/rdoc/commit/32ff6ba0bebd8ea26f569da5fd23be2937f6a644
- https://github.com/ruby/rdoc/commit/48617985e9fbc2825219d55f04e3e0e98d2923be
- https://github.com/ruby/rdoc/commit/811f125a4a0cc968e3eb18e16ea6c1a3b49a11bf
- https://github.com/ruby/rdoc/commit/a5de13bf0f0c26f8e764e82b5bf4bf8bffc7198e
- https://github.com/ruby/rdoc/commit/d22ba930f1f611dda531dba04cd3d2531bb3f8a5
- https://github.com/ruby/rdoc/commit/da7a0c7553ef7250ca665a3fecdc01dbaacbb43d
- https://github.com/ruby/rdoc/commit/e4a0e71e6f1032f8b4e5e58b4ef60d702c22ce17
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rdoc/CVE-2024-27281.yml
- https://hackerone.com/reports/1187477
- https://lists.debian.org/debian-lts-announce/2024/09/msg00000.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/27LUWREIFTP3MQAW7QE4PJM4DPAQJWXF
- https://lists.fedoraproject.org/archives/list/[email protected]/message/XYDHPHEZI7OQXTQKTDZHGZNPIJH7ZV5N
- https://nvd.nist.gov/vuln/detail/CVE-2024-27281
- https://www.ruby-lang.org/en/news/2024/03/21/rce-rdoc-cve-2024-27281
- https://www.ruby-lang.org/en/news/2024/03/21/rce-rdoc-cve-2024-27281/