Vulnerability Description
In Ktor before 1.3.0, request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle \n as a headers separator.
CVSS Score
5.4
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jetbrains | Ktor | < 1.3.0 |
Related Weaknesses (CWE)
References
- https://github.com/ktorio/ktor/pull/1547PatchThird Party Advisory
- https://github.com/ktorio/ktor/security/advisories/GHSA-xrr9-rh8p-433vThird Party Advisory
- https://github.com/ktorio/ktor/pull/1547PatchThird Party Advisory
- https://github.com/ktorio/ktor/security/advisories/GHSA-xrr9-rh8p-433vThird Party Advisory
FAQ
What is CVE-2020-5207?
CVE-2020-5207 is a vulnerability with a CVSS score of 5.4 (MEDIUM). In Ktor before 1.3.0, request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle \n as a headers separator.
How severe is CVE-2020-5207?
CVE-2020-5207 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-5207?
Check the references section above for vendor advisories and patch information. Affected products include: Jetbrains Ktor.