Vulnerability Description
In JetBrains Ktor before 1.6.4, nonce verification during the OAuth2 authentication process is implemented improperly.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jetbrains | Ktor | < 1.6.4 |
Related Weaknesses (CWE)
References
- https://blog.jetbrains.com/blog/2021/11/08/jetbrains-security-bulletin-q3-2021/Vendor Advisory
- https://blog.jetbrains.com/blog/2021/11/08/jetbrains-security-bulletin-q3-2021/Vendor Advisory
FAQ
What is CVE-2021-43203?
CVE-2021-43203 is a vulnerability with a CVSS score of 7.5 (HIGH). In JetBrains Ktor before 1.6.4, nonce verification during the OAuth2 authentication process is implemented improperly.
How severe is CVE-2021-43203?
CVE-2021-43203 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-43203?
Check the references section above for vendor advisories and patch information. Affected products include: Jetbrains Ktor.