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Critical Sandbox Escape Vulnerability in ServiceNow Now Platform: CVE-2024-8923 Analysis

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Executive Summary

CVE-2024-8923 represents a critical vulnerability within the ServiceNow Now Platform, specifically identified as a Sandbox Escape issue. With a CVSS score of 9.8, this vulnerability is of high severity, posing significant risks such as unauthorized access and potential data exposure. The flaw stems from an input validation error, allowing unauthenticated users to execute Remote Code Execution (RCE) within the platform. Given the widespread use of ServiceNow, this vulnerability demands immediate attention and action from organizations to mitigate potential threats.

Technical Information

CVE-2024-8923 is a critical vulnerability affecting the ServiceNow Now Platform, a widely used enterprise cloud platform. The vulnerability is categorized as a Sandbox Escape, which is a type of security flaw that allows malicious actors to break out of a restricted execution environment, or "sandbox," and execute arbitrary code on the host system. This particular vulnerability arises from an input validation error, which can be exploited by unauthenticated users to perform Remote Code Execution (RCE). The CVSS score of 9.8 underscores the critical nature of this flaw, highlighting the potential for severe impact on affected systems.

The vulnerability affects versions of the ServiceNow Now Platform released prior to the Xanadu General Availability. Exploitation of this vulnerability can occur over the network without any privileges or user interaction, making it particularly dangerous. This means that an attacker could potentially exploit the vulnerability remotely, without needing to authenticate or interact with the system in any way. The potential consequences of such an exploit include unauthorized access to sensitive data, disruption of services, and compromise of system integrity.

The ServiceNow Now Platform is used by organizations across various sectors, including healthcare, finance, and government, making the potential impact of this vulnerability far-reaching. The platform's extensive online exposure, with over 130,000 instances accessible, further amplifies the risk associated with this vulnerability. Organizations using the ServiceNow Now Platform are strongly advised to apply the available patches immediately to mitigate the risk of exploitation.

Exploitation in the Wild

As of the latest updates, there have been no specific reports of CVE-2024-8923 being exploited in the wild. Additionally, no known exploits or Advanced Persistent Threat (APT) groups have been associated with this vulnerability. However, given the critical nature of the flaw and the widespread use of the ServiceNow platform, it is imperative for organizations to remain vigilant and apply patches promptly to mitigate potential risks.

APT Groups using this vulnerability

Currently, there are no known APT groups exploiting CVE-2024-8923. However, the critical nature of this vulnerability and the high-value targets that use the ServiceNow platform make it a potential target for APT groups in the future. Organizations should remain alert and monitor for any signs of exploitation.

Affected Product Versions

The vulnerability affects the ServiceNow Now Platform versions released prior to the Xanadu General Availability. Organizations using these versions are at risk and should take immediate action to apply the necessary patches.

Workaround and Mitigation

ServiceNow has released patches to address CVE-2024-8923. Organizations using the Now Platform are strongly advised to apply these patches immediately. The patches were made available in August and October 2024, as per ServiceNow's advisories (KB1706070 and KB1706072). In addition to applying patches, organizations should also consider implementing additional security measures such as network segmentation, access controls, and continuous monitoring to further mitigate the risk of exploitation.

References

  1. ServiceNow Support Portal: https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1706070
  2. SOCRadar Cyber Intelligence: https://socradar.io/servicenow-now-platform-vulnerabilities-cve-2024-8923/
  3. CVE Details: https://www.cvedetails.com/cve/CVE-2024-8923/

Rescana is here for you

At Rescana, we understand the critical importance of staying ahead of cybersecurity threats. Our Continuous Threat and Exposure Management (CTEM) platform is designed to help organizations identify, assess, and mitigate vulnerabilities like CVE-2024-8923. By leveraging our platform, organizations can enhance their security posture and protect themselves from potential threats. We are here to support you in navigating the complex cybersecurity landscape. If you have any questions about this report or any other issue, please feel free to reach out to us at ops@rescana.com.

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