CVE-2006-6427 in WorkCentre
Summary
by MITRE
The Web User Interface in Xerox WorkCentre and WorkCentre Pro before 12.060.17.000, 13.x before 13.060.17.000, and 14.x before 14.060.17.000 allows remote attackers to execute arbitrary commands via unspecified vectors involving "command injection" in (1) the TCP/IP hostname, (2) Scan-to-mailbox folder names, and (3) certain parameters in the Microsoft Networking configuration. NOTE: vector 1 might be the same as CVE-2006-5290.
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Analysis
by VulDB Data Team • 12/19/2016
The vulnerability described in CVE-2006-6427 represents a critical command injection flaw within the web user interface of Xerox WorkCentre and WorkCentre Pro multifunction devices. This security weakness affects multiple firmware versions including those before 12.060.17.000, 13.x before 13.060.17.000, and 14.x before 14.060.17.000, exposing organizations to significant remote exploitation risks. The vulnerability stems from insufficient input validation and sanitization mechanisms within the device's web interface, allowing malicious actors to inject arbitrary commands that execute with the privileges of the web server process. This command injection occurs through three primary attack vectors that leverage different configuration parameters within the device's network settings and scanning functionalities.
The technical implementation of this vulnerability involves the exploitation of input fields that handle network configuration data and scanning parameters without proper sanitization. Attackers can manipulate the TCP/IP hostname field to inject malicious commands that get executed by the device's underlying operating system. Similarly, the Scan-to-mailbox folder name parameter and Microsoft Networking configuration parameters provide additional attack surfaces where command injection can occur. These vectors demonstrate a classic command injection vulnerability pattern where user-controllable input is directly incorporated into system commands without adequate filtering or escaping mechanisms. The vulnerability aligns with CWE-77 which categorizes command injection flaws and represents a fundamental breakdown in input validation controls within the device's web interface components.
The operational impact of this vulnerability extends beyond simple remote code execution to encompass potential full system compromise and network infiltration. Once exploited, attackers can gain unauthorized access to the device's file system, potentially allowing them to modify device configurations, extract sensitive information, or establish persistent access points within the network. The vulnerability's remote nature means that attackers do not require physical access to the device, making it particularly dangerous for enterprise environments where these devices are often connected to internal networks. Organizations using affected Xerox devices face risks of data breaches, network disruption, and potential lateral movement within their infrastructure, as the compromised devices can serve as entry points for broader attacks. This vulnerability directly maps to several ATT&CK techniques including T1059.001 for command and script interpreter and T1068 for exploit for privilege escalation.
Mitigation strategies for CVE-2006-6427 require immediate firmware updates to versions that address the command injection vulnerabilities in the affected Xerox device models. Organizations should implement network segmentation to isolate these devices from critical systems and limit their network access through firewall rules and access control lists. Input validation should be strengthened at the network level to filter potentially malicious content in HTTP requests targeting device web interfaces. Additionally, regular security assessments and vulnerability scanning should be conducted to identify any unpatched devices within the network infrastructure. The remediation process should include comprehensive testing of updated firmware to ensure that the security patches do not introduce compatibility issues with existing network configurations or business processes. Network monitoring should be enhanced to detect unusual traffic patterns that might indicate exploitation attempts, and incident response procedures should be updated to address potential compromise of multifunction device infrastructure.