CVE-2013-6881 in Ditto Forensic Fieldstation
Summary
by MITRE
CRU Ditto Forensic FieldStation with firmware before 2013Oct15a allows remote attackers to execute arbitrary commands via shell metacharacters in the (1) sector size or (2) skip count fields for the forensic imaging task.
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Analysis
by VulDB Data Team • 01/05/2025
The vulnerability identified as CVE-2013-6881 affects the CRU Ditto Forensic FieldStation device, a portable forensic imaging system used by digital forensics professionals for creating disk images. This critical security flaw exists in firmware versions prior to 2013Oct15a and represents a remote command execution vulnerability that could be exploited by attackers positioned outside the device's network perimeter. The vulnerability specifically targets the forensic imaging task configuration parameters, making it particularly dangerous for forensic operations where system integrity and data protection are paramount. The affected device operates in a forensic environment where unauthorized access could compromise evidence integrity and allow attackers to manipulate forensic processes. This vulnerability directly violates the principle of least privilege and could enable attackers to gain full control over the forensic imaging system, potentially leading to data corruption, evidence tampering, or complete system compromise.
The technical implementation of this vulnerability stems from inadequate input validation within the device's firmware handling of forensic imaging parameters. Attackers can exploit shell metacharacters in either the sector size or skip count fields during forensic imaging task configuration, allowing them to inject arbitrary commands that execute within the device's command execution context. This represents a classic command injection vulnerability where user-supplied input is directly concatenated into system commands without proper sanitization or escaping mechanisms. The CWE-77 standard categorizes this as a command injection flaw, while the ATT&CK framework would classify this under T1059.001 for command and script injection techniques. The vulnerability exists because the firmware fails to properly validate or sanitize user input before processing these parameters, creating an attack surface where maliciously crafted input can be interpreted as executable commands rather than configuration data.
The operational impact of this vulnerability extends beyond simple remote code execution, as it fundamentally undermines the trustworthiness of forensic imaging operations. When forensic investigators use compromised systems, they risk introducing contamination into their evidence chain, potentially rendering digital evidence inadmissible in legal proceedings. The ability to execute arbitrary commands remotely means that attackers could manipulate imaging parameters to skip critical sectors, alter sector sizes to create incomplete images, or execute malicious payloads that could compromise the entire forensic investigation. This vulnerability could enable attackers to establish persistent access to forensic environments, potentially allowing them to monitor ongoing investigations, alter forensic data, or even create false evidence. The forensic field station's role in digital forensics makes this vulnerability particularly severe, as it could compromise the integrity of evidence collection processes and undermine the credibility of forensic findings.
Mitigation strategies for CVE-2013-6881 should focus on immediate firmware updates to version 2013Oct15a or later, which contain proper input validation and sanitization mechanisms. Organizations should implement network segmentation to isolate forensic equipment from general network access, reducing the attack surface for remote exploitation. Additional security measures include disabling unnecessary network services, implementing strict access controls for forensic imaging systems, and conducting regular security assessments of forensic equipment. The vulnerability highlights the importance of firmware security in specialized forensic equipment, where traditional security measures may not be sufficient to protect against sophisticated attacks. Security teams should also consider implementing network monitoring to detect anomalous command execution patterns and establish incident response procedures specifically tailored to forensic equipment compromise scenarios. Regular security audits and vulnerability assessments of forensic tools are essential to prevent similar issues in other specialized equipment used in digital forensics operations.