SB2020020304 - HTTP Request Smuggling in JetBrains Kotlin Ktor
Published: February 3, 2020
Security Bulletin ID
SB2020020304
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2020-5207)
The vulnerability allows a remote attacker to perform HTTP request smuggling attack.
The vulnerability exists due to insufficient validation of HTTP request when running headers behind a proxy that does not handle Content-Length and Transfer-Encoding properly or does not handle "\n" as a headers separator. A remote attacker can send a specially crafted HTTP request and perform HTTP request smuggling attack.
Remediation
Install update from vendor's website.