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CVE-2025-1330: Local User Arbitrary Code Execution Vulnerability in IBM CICS TX

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Overview

The cybersecurity world is constantly evolving, and with it, the threats we face. One such emerging threat is the CVE-2025-1330 vulnerability. This vulnerability is a significant flaw found in IBM CICS TX Standard 11.1 and IBM CICS TX Advanced 10.1 and 11.1. It could allow a local user to execute arbitrary code on the system due to a failure in processing DNS return requests by the gethostbyname function. This anomaly could lead to serious consequences such as potential system compromise or data leakage, posing a critical threat to any organization utilizing these solutions.

Vulnerability Summary

CVE ID: CVE-2025-1330
Severity: High (7.8 CVSS Score)
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

IBM CICS TX Standard | 11.1
IBM CICS TX Advanced | 10.1, 11.1

How the Exploit Works

This exploit takes advantage of the failure in the gethostbyname function to correctly handle DNS return requests. A local user can exploit this vulnerability by executing arbitrary code. This code execution can occur without any user interaction and only requires low-level privileges. Upon successful execution, the attacker can compromise the system and possibly gain unauthorized access to sensitive information.

Conceptual Example Code

Here’s a conceptual representation of how the exploit might work within a shell command:

$ ./malicious_script.sh

The `malicious_script.sh` would contain the arbitrary code designed to exploit the vulnerability in the gethostbyname function. This could lead to a system compromise or leak of sensitive information if not mitigated.

Mitigation

IBM has already acknowledged this vulnerability and is urging users to apply the latest patches to fix this issue. If the patch cannot be applied immediately, it is recommended to use Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) as temporary mitigation measures. Regular monitoring and updating of systems is crucial in maintaining a secure environment.
Remember, cybersecurity is not a one-time event but a constant process. Stay vigilant and stay safe.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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