HTTP response splitting in Kotlin Ktor - CVE-2019-19389
Published: February 4, 2020
Vulnerability identifier: #VU24895
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2019-19389
CWE-ID: CWE-113
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: JetBrains s.r.o.
Affected software:
Kotlin Ktor
Kotlin Ktor
Detailed vulnerability description
The vulnerability allows a remote attacker to perform HTTP splitting attacks.
The vulnerability exists due to software does not corrector process CRLF character sequences. A remote attacker can send specially crafted request containing CRLF sequence and make the application to send a split HTTP response.
Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack and XSS.
How to mitigate CVE-2019-19389
Install updates from vendor's website.