CVE-2023-38363 : Security Advisory and Response

IBM CICS TX Advanced 10.1 has a vulnerability that allows attackers to obtain cookie values by sending a http:// link to a user or planting it in a site the user visits. This could lead to information disclosure.

Understanding CVE-2023-38363

This CVE involves IBM CICS TX Advanced 10.1, where attackers can exploit a vulnerability related to authorization tokens and session cookies leading to potential information disclosure.

What is CVE-2023-38363?

IBM CICS TX Advanced 10.1 does not set the secure attribute on authorization tokens or session cookies, enabling attackers to obtain cookie values through various means, including sending a http:// link to a user or planting it in a website the user visits.

The Impact of CVE-2023-38363

The vulnerability in IBM CICS TX Advanced 10.1 could result in the exposure of sensitive cookie information, allowing attackers to intercept and obtain these details through exploiting the insecure handling of authorization tokens and session cookies.

Technical Details of CVE-2023-38363

This section provides specific technical details related to the vulnerability in IBM CICS TX Advanced 10.1.

Vulnerability Description

IBM CICS TX Advanced 10.1 does not set the secure attribute on authorization tokens or session cookies. This oversight can enable attackers to intercept and obtain cookie values by directing users to insecure links.

Affected Systems and Versions

Product: CICS TX Advanced
Vendor: IBM
Affected Version: 10.1

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a http:// link to a user or planting it in a site the user visits. Subsequently, the attacker can intercept the cookie values by snooping on the traffic.

Mitigation and Prevention

To address the vulnerability in IBM CICS TX Advanced 10.1, specific mitigation steps and long-term security practices are essential.

Immediate Steps to Take

Users and organizations should implement the following immediate steps:

Monitor network traffic for any suspicious activities related to cookie interception.
Implement HTTPS and ensure secure attribute settings on authorization tokens and session cookies.

Long-Term Security Practices

Incorporate the following long-term security practices to enhance overall security posture:

Regularly update and patch IBM CICS TX Advanced to mitigate known vulnerabilities.
Conduct security training for users to increase awareness of potential threats like cookie interception.

Patching and Updates

Stay informed about security advisories from IBM, and promptly apply patches and updates to ensure the secure operation of IBM CICS TX Advanced 10.1.