IBM Sterling B2B Integrator is a trusted solution enabling secure and seamless communication for multichannel business-to-business (B2B) integration. However, the recent discovery of a cross-site scripting (XSS) vulnerability in the platform puts many users at risk. Identified as CVE-2023-32340, this XSS vulnerability affects IBM Sterling B2B Integrator versions 6... through 6.1.2.5 and 6.2... By exploiting this vulnerability, attackers can surreptitiously embed harmful JavaScript code into the Web UI, altering its intended functionality and potentially leading to credentials disclosure within a trusted session.

Exploit Details

The XSS vulnerability CVE-2023-32340 is a stored XSS flaw which occurs when the platform unwittingly saves a user's input that contains malicious JavaScript code. This payload is later executed without proper validation when the user navigates to the affected page or their stored resources.

In the case of IBM Sterling B2B Integrator, the malicious code may be masked within a legitimate request, evading the security controls and potentially causing harm to user data, leading to unauthorized access and sensitive data leakage.

The following sample payload illustrates how an attacker could exploit the vulnerability

<img src="x" onerror="alert('XSS-Vulnerability')">

In this example, the payload attempts to load an image with an invalid source, triggering the onerror event and executing a JavaScript alert() function, which displays a message about the XSS vulnerability. This benign example can be replaced with various malicious code to exploit the target system effectively.

Original References

1. IBM Security Bulletin: "IBM Sterling B2B Integrator is vulnerable to cross-site scripting (CVE-2023-32340)"
2. CVE Details: "CVE-2023-32340"

Mitigation Steps

To protect systems from the CVE-2023-32340 vulnerability, IBM has released a security patch with the following fixes: IBM Sterling B2B Integrator 6..3ifix9 (6..3.-IFT9) and IBM Sterling B2B Integrator 6.2..1 (6.2..1).

IBM strongly recommends that all affected users apply this security patch as soon as possible to minimize potential damage caused by this vulnerability. It is vital to regularly update and maintain the IBM Sterling B2B Integrator platform in line with IBM's security recommendations to safeguard against future threats.

Conclusion

The CVE-2023-32340 vulnerability in IBM Sterling B2B Integrator poses a serious risk to users, particularly in the context of credentials and sensitive data exposure. It's crucial to stay informed and act promptly to address this and similar threats. Applying the security patch, adhering to best practices, and regularly updating the platform should provide sufficient protection against the risk posed by the CVE-2023-32340 vulnerability, ensuring ongoing secure and seamless communication in B2B integrations.

Timeline

Published on: 01/23/2025 03:15:08 UTC