CVE-2000-0541 in Panda
Summary
by MITRE
The Panda Antivirus console on port 2001 allows local users to execute arbitrary commands without authentication via the CMD command.
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Analysis
by VulDB Data Team • 05/26/2018
The vulnerability described in CVE-2000-0541 represents a critical security flaw in the Panda Antivirus console implementation that exposes systems to unauthorized command execution. This vulnerability specifically affects the Panda Antivirus console software which listens on TCP port 2001, creating an attack surface that malicious actors can exploit to gain elevated privileges on affected systems. The flaw stems from inadequate authentication mechanisms within the console's command processing functionality, allowing any local user to submit commands through the CMD command interface without proper verification of credentials or authorization status.
The technical exploitation of this vulnerability occurs through the direct manipulation of the console's command interface where the CMD command accepts user input and executes it without proper validation or authentication checks. This design flaw creates a privilege escalation vector where local users who can access the console on port 2001 can execute arbitrary system commands with the privileges of the antivirus service account. The vulnerability operates at the application layer and specifically targets the command processing logic of the Panda Antivirus console, bypassing standard authentication protocols that should normally prevent unauthorized access to administrative functions.
The operational impact of this vulnerability extends beyond simple command execution, as it enables attackers to perform a wide range of malicious activities including system file modification, process manipulation, network reconnaissance, and privilege escalation to administrator level access. Attackers can leverage this vulnerability to install backdoors, modify antivirus configurations, disable security features, or exfiltrate sensitive data from compromised systems. The local user requirement for exploitation means that any user with access to the system can potentially exploit this vulnerability, making it particularly dangerous in multi-user environments where privilege separation may be inadequate. This vulnerability aligns with CWE-284, which addresses improper access control, and represents a classic example of insufficient authentication mechanisms in security-critical applications.
The exploitation of this vulnerability demonstrates a fundamental flaw in the security architecture of the Panda Antivirus console, where the assumption that local users are trusted entities leads to dangerous command execution capabilities. This vulnerability is particularly concerning because it affects the antivirus console itself, which typically runs with elevated privileges to perform system-level operations. The lack of input validation and authentication checks in the CMD command interface creates a persistent threat vector that remains exploitable until the underlying software is properly patched or updated. Organizations using affected versions of Panda Antivirus should implement immediate mitigations including network segmentation to isolate the console port, disabling unnecessary console access, and applying vendor patches to address the authentication bypass issue.
Mitigation strategies for this vulnerability should include immediate patching of the Panda Antivirus console software to implement proper authentication checks and command validation. Network administrators should consider implementing firewall rules to restrict access to port 2001 to only trusted IP addresses and systems that require legitimate console access. The principle of least privilege should be enforced by running the console service with minimal required permissions and ensuring that only authorized personnel have access to the console interface. Additionally, organizations should conduct comprehensive security audits of all antivirus and security software installations to identify similar authentication bypass vulnerabilities that may exist in other security tools. This vulnerability exemplifies the importance of proper access control implementation in security software and demonstrates how insufficient authentication mechanisms can create persistent security risks that remain exploitable for extended periods. The remediation process should also include monitoring for unauthorized access attempts and implementing logging mechanisms to track console usage and detect potential exploitation attempts.