CVE-2002-2184 in Digichat
Summary
by MITRE
Digi-Net Technologies DigiChat 3.5 allows chat users to obtain the IP addresses of other chat users via a "Showip" parameter in the chat applet.
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Analysis
by VulDB Data Team • 06/11/2018
The vulnerability identified as CVE-2002-2184 affects Digi-Net Technologies DigiChat 3.5, a chat application that exposes sensitive network information through improper input validation mechanisms. This issue represents a significant privacy and security concern as it enables unauthorized information disclosure through a seemingly benign feature within the chat interface. The vulnerability resides in the application's handling of the "Showip" parameter within the chat applet, which allows malicious users to extract IP address information from other participants in the chat session.
The technical flaw manifests through a lack of proper parameter validation and access control within the DigiChat 3.5 application. When users interact with the chat applet and utilize the "Showip" parameter, the system fails to implement adequate authorization checks or input sanitization measures. This weakness creates an information disclosure vulnerability that falls under the CWE-20 category of "Improper Input Validation" and specifically relates to CWE-200 "Information Exposure." The vulnerability enables an attacker to manipulate the chat applet's behavior to retrieve network addresses of other users, effectively bypassing intended privacy controls and access restrictions.
The operational impact of this vulnerability extends beyond simple information disclosure to potentially enable more sophisticated attack vectors. An attacker who successfully exploits this vulnerability can obtain IP addresses of other chat participants, which serves as a crucial piece of reconnaissance information for further attacks. This information can be leveraged for network mapping, targeted attacks, or social engineering operations. The vulnerability directly impacts the confidentiality aspect of the CIA triad and can be classified under ATT&CK technique T1083 "File and Directory Discovery" when used for reconnaissance purposes. The exposure of IP addresses can facilitate port scanning activities, network enumeration, and potentially lead to more severe compromise of the underlying network infrastructure.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and access control mechanisms within the chat application. System administrators should immediately update to patched versions of Digi-Net Technologies DigiChat 3.5 or implement network-level restrictions to prevent unauthorized access to chat functionality. The application should validate all user inputs and implement proper authorization checks before exposing any network information. Additionally, network monitoring should be enhanced to detect unusual patterns of IP address requests within chat sessions. Organizations should also consider implementing network segmentation and firewall rules to limit access to chat applications and prevent lateral movement if the vulnerability is exploited. The remediation process should include thorough security testing of all web application parameters and input fields to prevent similar vulnerabilities in other components of the system.