Resource exhaustion in Rack
CVE-2022-44572
A denial of service vulnerability in the multipart parsing component of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1 and 3.0.0.1 could allow an attacker tocraft input that can cause RFC2183 multipart boundary parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that parse multipart posts using Rack (virtually all Rails applications) are impacted.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.016 (73.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Rack
- N/a Https://github.com/rack/rack — versions 2.0.9.2, 2.1.4.2, 2.2.4.1, 3.0.0.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Permissions Required, Third Party Advisory)
- support@hackerone.com (vendor-advisory)
- support@hackerone.com
Frequently asked questions
- What is CVE-2022-44572?
- CVE-2022-44572 is a high-severity vulnerability in Rack, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-02-09.
- How severe is CVE-2022-44572?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-44572 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.