CVE-2007-4374 in Babo Violent
Summary
by MITRE
Babo Violent 2 2.08.00 does not validate the sender field of a chat message composed by a client, which allows remote authenticated users to spoof messages.
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Analysis
by VulDB Data Team • 10/30/2017
The vulnerability identified as CVE-2007-4374 affects Babo Violent 2 version 2.08.00 and represents a significant security flaw in the chat messaging system of this instant messaging application. This issue stems from the application's failure to properly validate the sender field within chat messages, creating a condition where authenticated users can manipulate the source identification of their communications. The vulnerability exists at the application layer where user input validation mechanisms are insufficient to prevent malicious modification of message metadata.
This flaw constitutes a classic case of insufficient input validation, specifically categorized under CWE-20 as "Improper Input Validation," which allows for message spoofing attacks. The vulnerability operates by exploiting the trust relationship between the messaging application and its users, where the application accepts and displays chat messages without verifying the authenticity of the sender field. Remote authenticated users can leverage this weakness to send messages that appear to originate from other users within the chat system, effectively bypassing the intended user identification mechanisms.
The operational impact of this vulnerability extends beyond simple message manipulation and creates potential for more serious security consequences within the messaging environment. Attackers can exploit this weakness to impersonate legitimate users, potentially spreading misinformation, conducting social engineering attacks, or disrupting normal communication patterns within chat groups. The spoofed messages can undermine trust in the messaging system and may lead to confusion among users who cannot reliably verify message authenticity. This vulnerability particularly affects collaborative environments where message integrity and user identification are critical for maintaining secure communications.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1566.001 "Phishing" and T1566.002 "Spearphishing Attachment" as it enables attackers to craft convincing fake communications that appear to come from trusted sources. The attack requires minimal privileges since it only requires authentication to the system, making it particularly dangerous as it can be exploited by any authenticated user. The lack of proper validation creates an opportunity for attackers to manipulate the trust model of the messaging application, potentially leading to more sophisticated attacks that build upon this initial foothold.
Mitigation strategies for this vulnerability should focus on implementing proper input validation mechanisms at the application level. The system should enforce strict validation of all user-provided data, particularly fields that identify message sources. Implementing cryptographic signatures or message authentication codes would provide stronger assurance of message origin and integrity. Additionally, the application should maintain audit logs of message sources and implement rate limiting to prevent abuse of the spoofing capability. Security updates should include comprehensive input sanitization routines and proper authentication of message metadata to ensure that the sender field cannot be manipulated by unauthorized parties. The fix should also consider implementing a certificate-based authentication system or digital signatures to verify message authenticity and prevent unauthorized modification of message attributes.