CVE-2024-27285: yard XSS — Exploit & Fix

Description

YARD is a Ruby Documentation tool. The "frames.html" file within the Yard Doc's generated documentation is vulnerable to Cross-Site Scripting (XSS) attacks due to inadequate sanitization of user input within the JavaScript segment of the "frames.erb" template file. This vulnerability is fixed in 0.9.36.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
yardoc	yard	< 0.9.36
fedoraproject	fedora	All
debian	debian_linux	All

References

Advisories & Patches

Exploits

https://github.com/lsegal/yard/security/advisories/GHSA-8mq4-9jjh-9xrc https://github.com/rubysec/ruby-advisory-db/blob/master/gems/yard/CVE-2024-27285.yml https://github.com/lsegal/yard/security/advisories/GHSA-8mq4-9jjh-9xrc https://github.com/rubysec/ruby-advisory-db/blob/master/gems/yard/CVE-2024-27285.yml

Other References

https://lists.debian.org/debian-lts-announce/2024/03/msg00006.html https://lists.fedoraproject.org/archives/list/[email protected]/message/MR3Z2E2UIZZ7YOR7R645EVSBGWMB2RGA/ https://lists.debian.org/debian-lts-announce/2024/03/msg00006.html https://lists.fedoraproject.org/archives/list/[email protected]/message/MR3Z2E2UIZZ7YOR7R645EVSBGWMB2RGA/

Frequently Asked Questions

What is CVE-2024-27285? +

YARD is a Ruby Documentation tool. The "frames.html" file within the Yard Doc's generated documentation is vulnerable to Cross-Site Scripting (XSS) attacks due to inadequate sanitization of user input within the JavaScript segment of the "frames.erb" template file. This vulnerability is fixed in 0.9.36. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2024-27285? +

CVE-2024-27285 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-27285? +

CVE-2024-27285 affects products from debian, fedoraproject, yardoc, specifically: debian_linux, fedora, yard. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-27285? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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