SB2022101811 - Multiple vulnerabilities in IBM Sterling B2B Integrator
Published: October 18, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Insufficient Session Expiration (CVE-ID: CVE-2021-34428)
The vulnerability allows an attacker to gain access to sensitive information.
The vulnerability exists due to insufficient session expiration issue. If an exception is thrown from the SessionListener#sessionDestroyed() method, then the session ID is not invalidated in the session ID manager. On deployments with clustered sessions and multiple contexts this can result in a session not being invalidated.
2) Input validation error (CVE-ID: CVE-2021-28169)
The vulnerability allows a remote attacker to gain access to sensitive information..
The vulnerability exists due to a double decoding issue when parsing URI with certain characters. A remote attacker can send requests to the ConcatServlet and WelcomeFilter and view contents of protected resources within the WEB-INF directory.
Example:
/concat?/%2557EB-INF/web.xml
3) Improper access control (CVE-ID: CVE-2021-34429)
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper input validation when processing certain characters in URI. A remote attacker can send a specially crafted HTTP request with encoded characters in URI, bypass implemented security restrictions and access content of the WEB-INF directory.
Remediation
Install update from vendor's website.