In Splunk Enterprise versions below 10.2.0, 10.0.4, 9.4.9, and 9.3.10, as well as Splunk Cloud Platform versions below 10.2.2510.5, 10.0.2503.12, 10.1.2507.16, and 9.3.2411.124, a vulnerability allows users with the high-privilege capability `edit_cmd` to execute arbitrary shell commands. This is achieved through the `unarchive_cmd` parameter for the `/splunkd/__upload/indexing/preview` REST endpoint.
The vulnerability has been classified as high severity with a CVSS score of 7.2. The attack vector is network-based, requiring high privileges but no user interaction, indicating a significant risk to systems employing vulnerable versions.
Risk to organizations includes potential unauthorized command execution, leading to data breaches or system compromise. Organizations should prioritize patching immediately to protect their environments from possible exploitation.
As of the latest information, there are no known exploits or public proof-of-concept available. However, the existence of this vulnerability emphasizes the importance of maintaining updated software versions to mitigate risks.
Vulnerability Details
The vulnerability allows an attacker holding a role with the `edit_cmd` capability to execute arbitrary shell commands. This capability should be tightly controlled and monitored to prevent misuse.
The CVSS score of 7.2 indicates a high severity level, underscoring the critical nature of this vulnerability. Organizations running affected versions should be aware of the potential impacts to confidentiality, integrity, and availability.
This vulnerability is classified under CWE-77, which pertains to command injection vulnerabilities. Organizations should review their configurations and limit privileges granted to users.
Technical Analysis
The root cause of the vulnerability lies in improper validation of the `unarchive_cmd` parameter, allowing shell commands to be executed if the user has the appropriate privileges.
The attack vector is network-based, requiring access to the REST endpoint. The attack complexity is low, as the required privileges can be assigned to specific roles without additional user interaction.
With high privileges needed for exploitation, organizations must ensure that only trusted users have access to roles containing the `edit_cmd` capability.
Risk & Impact Analysis
Real-world deployment risk is significant, as attackers may exploit the vulnerability to gain unauthorized access and control over the system. This could lead to severe data loss, system downtime, or even further compromise of the network.
The blast radius is extensive, affecting any organization using the specified versions of Splunk Enterprise or Splunk Cloud Platform, emphasizing the urgency of addressing this vulnerability.
Given the high CVSS score of 7.2, organizations should address this vulnerability in their priority patch cycle, ensuring that all affected systems are updated to the latest versions.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions are affected by this vulnerability: Splunk Enterprise versions below 10.2.0, 10.0.4, 9.4.9, and 9.3.10; Splunk Cloud Platform versions below 10.2.2510.5, 10.0.2503.12, 10.1.2507.16, and 9.3.2411.124.
Mitigation & Remediation
To remediate this vulnerability, organizations should upgrade to the latest versions of Splunk Enterprise and Splunk Cloud Platform. Specific versions to upgrade to include Splunk Enterprise 10.2.0 or newer and Splunk Cloud Platform 10.2.2510.5 or newer.
If an immediate upgrade is not possible, organizations should consider implementing strict role-based access controls to limit the assignment of the `edit_cmd` capability to trusted personnel only.
Additionally, continuous monitoring of user activities related to the REST endpoint should be established to detect any unauthorized command executions.
Organizations can validate remediation effectiveness through penetration testing to ensure that all vulnerabilities have been adequately addressed.
Detection Guidance
Organizations should monitor logs for any unusual access patterns to the `/splunkd/__upload/indexing/preview` REST endpoint. Indicators of exploitation may include unexpected command execution attempts or modifications to user roles.
Behavioral anomalies related to user permissions should also be flagged for review, ensuring that any unauthorized privilege escalation is addressed immediately.
AppSecure Threat Intelligence Insight
This vulnerability highlights the critical need for organizations to enforce strict access control measures for privileged roles. Regular audits of permissions and capabilities assigned to users are essential in mitigating risks associated with privilege escalation.
The trend of vulnerabilities allowing command execution through misconfigured permissions is not new. It serves as a reminder for security teams to adopt a proactive stance in vulnerability management and remediation.
For further insights into vulnerability management best practices, organizations can explore resources such as the vulnerability management program and the importance of ongoing penetration testing.
Staying informed about the latest vulnerabilities and implementing timely patches is crucial for maintaining a secure environment.
Known Exploitation Timeline
As of now, this vulnerability has not been included in the KEV (Known Exploited Vulnerabilities) catalog, indicating that there are no documented instances of it being actively exploited.
EPSS Risk Context
The EPSS score of 0.000720000 places this vulnerability in the 0.22 percentile, indicating a relatively low probability of exploitation in the near term. However, the potential impact of exploitation remains high.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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