SB2022091907 - Denial of service in App Connect Professional
Published: September 19, 2022
Security Bulletin ID
SB2022091907
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Handling of Exceptional Conditions (CVE-ID: CVE-2021-30639)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error management within the application when handling unexpected connection termination. A remote attacker can drop connection with the Apache Tomcat server, which triggers a non-blocking I/O error and causes all requests, handled by that request object, to fail. As a result, a remote attacker can initiate and drop connections to the server and perform a denial of service attack.Remediation
Install update from vendor's website.
References
- https://www.ibm.com/blogs/psirt/security-bulletin-app-connect-professional-is-affected-by-apache-tomcat-vulnerabilities-6/"
- https://www.ibm.com/blogs/psirt/security-bulletin-app-connect-professional-is-affected-by-apache-tomcat-vulnerabilities-6/</a><br>
- https://www.ibm.com/support/pages/node/6491087<br><br></p>