CVE-2006-6953 in Manager
Summary
by MITRE
The virtual keyboard implementation in GlobeTrotter Mobility Manager changes the color of a key as it is pressed, which allows local users to capture arbitrary keystrokes, such as for passwords, by shoulder surfing or grabbing periodic screenshots.
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Analysis
by VulDB Data Team • 10/07/2017
The vulnerability described in CVE-2006-6953 represents a critical security flaw in the GlobeTrotter Mobility Manager's virtual keyboard implementation that fundamentally compromises user authentication security. This issue arises from the keyboard's visual feedback mechanism where individual keys change color during activation, creating a predictable pattern that can be exploited by attackers. The vulnerability specifically targets the visual representation aspect of the virtual keyboard rather than any underlying cryptographic or network security weaknesses. The implementation fails to properly mask or obscure the actual keystrokes being entered, instead providing visual cues that reveal the sequence of pressed keys to observers. This design flaw directly violates fundamental security principles regarding the protection of sensitive input data, particularly in environments where physical security cannot be guaranteed.
The technical nature of this vulnerability stems from the implementation of visual feedback in the virtual keyboard component, which creates a timing-based side-channel attack vector. When a user presses keys on the virtual keyboard, the color change occurs in a predictable manner that can be observed by unauthorized individuals through shoulder surfing techniques or by analyzing periodic screenshots of the screen. The vulnerability operates at the user interface level rather than at the system or network level, making it particularly insidious because it exploits human factors and environmental security rather than technical system weaknesses. This implementation flaw essentially transforms a normally secure virtual keyboard into an insecure input mechanism that provides attackers with sufficient information to reconstruct passwords and other sensitive credentials.
The operational impact of this vulnerability extends far beyond simple credential theft, as it fundamentally undermines the security model of any system relying on virtual keyboards for authentication. Local users with access to the system can exploit this weakness to capture passwords, PINs, and other sensitive information without requiring sophisticated technical tools or network-level access. The attack vector is particularly concerning because it can be executed through passive observation techniques such as shoulder surfing or by collecting screenshots at regular intervals, making it accessible to attackers with minimal technical expertise. This vulnerability effectively neutralizes the security benefits that virtual keyboards typically provide, particularly in mobile or public computing environments where physical security cannot be guaranteed. The risk is compounded in scenarios where users are unaware that their keystrokes are being visually revealed, creating a false sense of security.
The mitigation strategies for this vulnerability should focus on eliminating or significantly reducing the visual feedback mechanisms that enable the attack. Security implementations should avoid using color changes or other visual indicators that reveal keystroke patterns during virtual keyboard input. The solution requires a fundamental redesign of the keyboard interface to ensure that visual feedback does not correlate with actual key presses, thereby breaking the attack vector. Organizations should implement comprehensive security awareness training to educate users about the risks of shoulder surfing and screen monitoring, while also ensuring that virtual keyboard implementations follow established security guidelines and best practices. This vulnerability highlights the importance of considering all aspects of user interface design from a security perspective, particularly when handling sensitive authentication data. The issue aligns with CWE-200, which addresses information exposure, and represents a clear violation of the principle of least privilege and secure input handling as outlined in various security frameworks and standards.