Vulnerability in Rack
CVE-2024-25126
Rack is a modular Ruby web server interface. Carefully crafted content type headers can cause Rack’s media type parser to take much longer than expected, leading to a possible denial of service vulnerability (ReDos 2nd degree polynomial). This vulnerability is patched in 3.0.9.1 and 2.2.8.1.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.354 (98.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.354 · newest: 0.354 · change: 0.000
Affected products
- Rack — versions >= 3.0.0, < 3.0.9.1, >= 0.4, < 2.2.8.1
- Debian Linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/rack/rack/security/advisories/GHSA-22f2-v57c-j9cx (Exploit, Vendor Advisory)
- github.com/rack/rack/commit/6efb2ceea003c4b195815a614e00438cbd543462 (Patch)
- github.com/rack/rack/commit/d9c163a443b8cadf4711d84bd2c58cb9ef89cf49 (Patch)
- discuss.rubyonrails.org/t/denial-of-service-vulnerability-in-rack-content-type-… (Exploit, Vendor Advisory)
- github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2024-25126.yml (Exploit, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2024/04/msg00022.html (Mailing List)
- security.netapp.com/advisory/ntap-20240510-0005/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2024-25126?
- CVE-2024-25126 is a medium-severity vulnerability in Rack, classified under Inefficient Regular Expression Complexity. CVSS score: 5.3/10. Published 2024-02-29.
- How severe is CVE-2024-25126?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2024-25126 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.