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CVE-2025-33120: Privilege Escalation Vulnerability in IBM QRadar SIEM

Overview

The vulnerability CVE-2025-33120 affects IBM QRadar SIEM versions 7.5 through 7.5.0 UP13, allowing an authenticated user to escalate their privileges via a misconfigured cronjob. This issue is significant because it can potentially lead to system compromise or data leakage, impacting the confidentiality, integrity and availability of the targeted system.

Vulnerability Summary

CVE ID: CVE-2025-33120
Severity: High (CVSS 7.8)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: System compromise, Potential Data Leakage

Affected Products

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Product | Affected Versions

IBM QRadar SIEM | 7.5 through 7.5.0 UP13

How the Exploit Works

An authenticated user could exploit this vulnerability by taking advantage of a misconfigured cronjob that is executed with unnecessary privileges. By injecting malicious commands or scripts into this cronjob, the attacker can escalate their privileges, gaining unauthorized access to system resources or sensitive data.

Conceptual Example Code

Here is an illustrative example of how an attacker could exploit this vulnerability. This is not a functioning exploit code, but a concept to understand the nature of the threat.

# Authenticating to the system
$ ssh user@qradar.example.com
# Locating the misconfigured cronjob
$ crontab -l
# Adding malicious command to the cronjob
$ (crontab -l ; echo "* * * * * /path/to/malicious/script.sh") | crontab -

In this case, the malicious script.sh could be designed to grant the attacker higher privileges or exfiltrate sensitive data.

Mitigation Guidance

IBM has released a patch to address this vulnerability. Affected systems should be updated to the latest version as soon as possible. As a temporary mitigation, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to monitor and block suspicious activities. However, these measures do not provide full protection against the vulnerability and should be used in conjunction with the vendor patch.

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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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