CVE-2024-27281
RDoc RCE vulnerability with .rdoc_options
Description
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.
How to fix CVE-2024-27281
To remediate CVE-2024-27281, upgrade the affected package to a fixed version below.
- —upgrade to 3.1.5-r0 or later
- —upgrade to 2.7.4-1+deb11u2 or later
- —upgrade to 3.1.2-7+deb12u1 or later
- —upgrade to 6.3.4.1 or later
Is CVE-2024-27281 being exploited?
Low — EPSS is 2.4%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 3.1.5-r0
- from 0, < 2.7.4-1+deb11u2
- from 0, < 3.1.2-7+deb12u1
- >= 6.3.3, < 6.3.4.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM4.5 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L |