A vulnerability in the debug shell of Cisco Video Phone 8875 and Cisco Desk Phone 9800 Series could allow an authenticated, local attacker to access sensitive information on an affected device. The severity level is assessed as medium due to a CVSS score of 4.4, which indicates a moderate risk that organizations must address. This vulnerability poses a real-world risk as it allows attackers with valid administrative credentials to exploit the system if they gain SSH access, which is disabled by default.
This vulnerability allows local attackers to gain access to sensitive information by sending crafted SSH commands to the command-line interface. The urgency for defenders to act is reflected in the potential for unauthorized access to sensitive system data, which could lead to further exploits if not remediated.
Organizations should prioritize patching immediately to mitigate the associated risks, particularly due to the necessity of administrative credentials for exploitation. It is essential for security teams to assess their configurations and ensure that SSH access is appropriately managed.
The known status of exploitation for this vulnerability is currently not reported, which may provide a window for organizations to implement necessary defenses before any potential attacks.
Given the context of this vulnerability, immediate attention to patching and security configurations is essential to prevent unauthorized access and data breaches.
Vulnerability Details
This vulnerability allows an authenticated, local attacker to exploit sensitive information through the debug shell. The specific affected products include the Cisco Video Phone 8875 and several models of Cisco Desk Phones, including the 9800 Series. The vulnerability is classified under CWE-200, indicating information exposure through an error in user input validation.
The CVSS score of 4.4 indicates a medium severity, primarily due to the requirement for high privileges to exploit this vulnerability. The attack vector is categorized as local, and the attack complexity is low, meaning that while administrative access is required, the method of exploitation does not involve advanced techniques.
The vulnerability was published on February 19, 2025, and has been analyzed thoroughly. Organizations using affected products should ensure that they are aware of their configurations and implement necessary security measures.
Technical Analysis
The root cause of this vulnerability stems from insufficient validation of user-supplied input by the debug shell. This flaw allows attackers to construct specific SSH commands that can expose sensitive information. The attack vector is limited to local access, requiring the attacker to be on the same network or physically present at the device.
The attack complexity is low, as it does not require any special conditions or advanced skills beyond having administrative credentials and access to the device. No user interaction is required for the exploitation to succeed.
The confidentiality impact is high, indicating that sensitive information could be compromised, while the integrity and availability impacts are both assessed as none, suggesting that the core functionality of the devices would remain intact.
Risk & Impact Analysis
The real-world deployment risk associated with this vulnerability is significant. Since it requires high privileges, the attacker's ability to exploit the vulnerability is contingent upon having administrative access. However, once access is obtained, the potential for sensitive information exposure is considerable.
Organizations utilizing Cisco Video Phone 8875 and Desk Phone 9800 Series devices should be aware of the blast radius potential if this vulnerability is exploited. The ability for an attacker to access sensitive operating system information could lead to further attacks or information leaks.
The urgency assessment based on the CVSS score and the current state of knowledge indicates that organizations should address this vulnerability during their priority patch cycle to prevent any potential exploitation.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include various firmware versions for the Cisco Video Phone 8875 and the Cisco Desk Phone 9800 Series, specifically all versions prior to the vendor patch. Organizations should ensure they upgrade to the latest firmware to mitigate this vulnerability.
Mitigation & Remediation
To mitigate this vulnerability, organizations should ensure they apply the latest firmware updates from Cisco. It is also crucial to review and restrict SSH access, ensuring that it is only enabled when necessary and that strong authentication measures are in place.
For additional guidance on securing your network and devices, consider exploring our penetration testing services.
Detection Guidance
Monitoring for unauthorized SSH access attempts and unexpected command executions in logs is critical. Organizations should establish behavior baselines for normal operations to detect anomalies effectively.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its potential for exploitation by attackers who manage to gain administrative access. Security teams must remain vigilant and apply lessons learned from similar vulnerabilities to strengthen their defenses.
To remain proactive, security professionals should implement continuous monitoring and regular vulnerability assessments. For in-depth methodologies, consider reviewing our penetration testing methodology and the importance of a comprehensive vulnerability management program in mitigating risks effectively.
Lastly, the adoption of advanced security measures can help prevent similar vulnerabilities from being exploited in the future, reinforcing the overall security posture of the organization.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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