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Cybersecurity Threat Advisory

There has been active exploitation of a critical operating system (OS) command injection vulnerability, known as CVE-2017-3506, found in the Oracle WebLogic Server. The impact can be severe, ranging from financial loss to reputational damage. Review this Cybersecurity Threat Advisory to learn how to mitigate your risk now.

What is the threat?

The critical OS command injection vulnerability allows an unauthenticated attacker to execute arbitrary OS commands on the server. The vulnerability exploits a flaw in the WebLogic Server component, where input data is improperly sanitized. Attackers can leverage this vulnerability by sending a specially crafted HTTP request, leading to the execution of arbitrary commands with the same privileges as the WebLogic Server. This can result in complete control over the server, including the ability to steal sensitive information, disrupt services, and deploy additional malicious payloads. There have been instances of active exploitation of this vulnerability, where threat actors target exposed Oracle WebLogic Servers to gain unauthorized access and execute malicious activities.

Why is it noteworthy?

The active exploitation and inclusion in the Cybersecurity and Infrastructure Security Agency’s (CISA) Known Exploited Vulnerabilities Catalog underscore the urgency for organizations to address this threat. Successful exploitation can lead to significant data breaches, operational disruptions, and further network security compromise.

What is the exposure or risk?

The primary risk involves unauthorized remote command execution, which can lead to a full compromise of the affected system. Organizations may face data theft, unauthorized access to sensitive information, service disruptions, and potential deployment of additional malware. The exposure is significant, particularly for servers directly accessible from the internet without adequate security controls.

What are the recommendations?

Barracuda MSP recommends the following actions to mitigate the risk posed by CVE-2017-3506.

  • Apply the latest security patches and updates for the WebLogic Server provided by Oracle.
  • Implement network segmentation and access controls to limit exposure.
  • Implement continuous monitoring of WebLogic Server logs for suspicious activities and establish an incident response plan.
  • Enforce strict access controls and limit administrative privileges to essential personnel only.
  • Follow general security best practices, including regular vulnerability assessments and penetration testing.


For more in-depth information, please visit the following links:

If you have any questions about this Cybersecurity Threat Advisory, please contact Barracuda XDR’s Security Operations Center.

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Laila Mubashar

Posted by Laila Mubashar

Laila is a Cybersecurity Analyst at Barracuda MSP. She's a security expert, working on our Blue Team within our Security Operations Center. Laila supports our XDR service delivery and is highly skilled at analyzing security events to detect cyber threats, helping keep our partners and their customers protected.

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