Vulnerability in Sinatra
CVE-2022-45442
Sinatra is a domain-specific language for creating web applications in Ruby. An issue was discovered in Sinatra 2.0 before 2.2.3 and 3.0 before 3.0.4. An application is vulnerable to a reflected file download (RFD) attack that sets the Content-Disposition header of a response when the filename is derived from user-supplied input. Version 2.2.3 and 3.0.4 contain patches for this issue.
EPSS: 0.006 (47.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Sinatra — versions >= 3.0, < 3.0.4, >= 2.0, < 2.2.3
- Sinatrarb Sinatra
- Debian Debian_linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Not Applicable)
- security-advisories@github.com (Exploit, Third Party Advisory)
- security-advisories@github.com (mailing-list, Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2022-45442?
- CVE-2022-45442 is a high-severity vulnerability in Sinatra, classified under Download of Code Without Integrity Check. CVSS score: 8.8/10. Published 2022-11-28.
- How severe is CVE-2022-45442?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-45442 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.