CVE-2023-38557 in Spectrum Power 7
Summary
by MITRE • 09/14/2023
A vulnerability has been identified in Spectrum Power 7 (All versions < V23Q3). The affected product assigns improper access rights to the update script. This could allow an authenticated local attacker to inject arbitrary code and escalate privileges.
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Analysis
by VulDB Data Team • 09/14/2023
The vulnerability identified as CVE-2023-38557 affects Spectrum Power 7 software across all versions prior to V23Q3, representing a critical access control flaw that undermines the system's security posture. This issue stems from improper access rights assignment within the update script mechanism, creating a pathway for malicious actors to exploit the system's privilege management. The vulnerability specifically targets the local authentication context, requiring an attacker to first establish a valid user session before attempting exploitation, though this initial requirement does not mitigate the severity of the potential compromise.
The technical flaw manifests in the update script's permission model where insufficient access controls are implemented to restrict execution privileges. This misconfiguration allows an authenticated local user to manipulate the update process and inject malicious code that executes with elevated privileges. The vulnerability aligns with CWE-276, which addresses improper file permissions, and represents a classic privilege escalation vector where local access is leveraged to gain system-level privileges. The attack surface is particularly concerning as it operates within the legitimate update framework, making detection more challenging for security monitoring systems.
The operational impact of this vulnerability extends beyond simple code injection, as successful exploitation enables full system compromise through privilege escalation. An attacker who gains access to a local user account can potentially execute arbitrary commands with administrative privileges, leading to complete system takeover. This vulnerability directly maps to ATT&CK technique T1068, which covers local privilege escalation, and T1078, covering valid accounts for maintaining access. The implications are severe for industrial control systems and power management environments where Spectrum Power 7 is deployed, as such systems often handle critical infrastructure operations and require robust security controls.
Mitigation strategies should prioritize immediate patch application to versions V23Q3 or later where the access control issues have been resolved. Organizations should also implement additional security measures including regular privilege audits, monitoring for unauthorized script execution, and network segmentation to limit local access. The update process should be configured with proper file permissions and integrity checks to prevent unauthorized modifications. Security teams should conduct comprehensive vulnerability assessments to identify any instances where the vulnerable software remains in production and establish monitoring protocols to detect potential exploitation attempts through anomalous privilege escalation activities.