SB2021110815 - Authentication bypass in JetBrains Ktor
Published: November 8, 2021
Security Bulletin ID
SB2021110815
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) Improper Authentication (CVE-ID: CVE-2021-43203)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to improper nonce verification during the OAuth2 authentication process. A remote attacker can bypass authentication process and gain unauthorized access to the application.
Remediation
Install update from vendor's website.