CVE-2004-1511 in Web Browser
Summary
by MITRE
Hotfoon 4.0 does not notify users before opening links in web browsers, which could allow remote attackers to execute arbitrary code via a certian link sent in a chat window.
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Analysis
by VulDB Data Team • 07/15/2017
The vulnerability identified as CVE-2004-1511 affects Hotfoon 4.0, a chat application that fails to implement proper user notification mechanisms when processing hyperlinks. This flaw represents a critical security oversight in the application's web interaction handling, where the software automatically opens URLs without alerting users to the potential risks involved. The vulnerability stems from the application's design philosophy that assumes all links are safe and legitimate, creating a dangerous trust model that can be exploited by malicious actors. This issue directly violates fundamental security principles that require user consent for potentially dangerous operations, particularly when dealing with external network resources.
The technical implementation flaw occurs within the chat application's hyperlink processing module, where incoming URLs are automatically interpreted and executed without any user confirmation or warning. When users receive a specially crafted link through the chat interface, the application immediately launches the associated web browser without providing any indication that a network connection is being established. This behavior creates an attack vector where remote adversaries can craft malicious URLs that, when clicked, execute arbitrary code on the victim's system. The vulnerability is particularly concerning because it operates at the application layer, bypassing typical browser security mechanisms that would normally warn users about potentially dangerous downloads or executables.
The operational impact of this vulnerability extends beyond simple code execution, as it can enable sophisticated attack chains including drive-by downloads, phishing attacks, and social engineering campaigns. Attackers can craft links that redirect users to malicious websites hosting exploit code, or they can create links that automatically download and execute malware directly. The lack of user notification makes this vulnerability particularly dangerous because users have no awareness that they are being exploited, creating an environment where successful attacks can occur without any user interaction beyond accepting the chat message. This vulnerability can be leveraged to establish persistent access to compromised systems and can serve as a launching point for broader network infiltration attempts.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-693, which addresses protection mechanisms that are bypassed or defeated, and represents a clear violation of the principle of least privilege. The flaw also maps to ATT&CK technique T1203, which covers exploitation for execution, where attackers use compromised applications to gain unauthorized code execution. Organizations using Hotfoon 4.0 face significant risk exposure, as this vulnerability can be exploited through simple chat message distribution without requiring any special privileges or advanced technical knowledge. The vulnerability is particularly problematic in enterprise environments where chat applications are commonly used for internal communications and may contain sensitive information that could be exploited by attackers.
Mitigation strategies for this vulnerability should focus on immediate application updates and user education. The most effective solution involves implementing proper link handling that requires explicit user confirmation before opening external URLs, which can be achieved through the addition of warning dialogs or confirmation prompts. Organizations should also consider implementing network-level controls such as proxy filtering and URL blacklisting to prevent access to known malicious domains. Additionally, security awareness training should emphasize the dangers of clicking unknown links in chat applications, and administrators should consider disabling automatic URL opening features in all chat applications until proper security controls are implemented. The vulnerability highlights the importance of implementing defense-in-depth strategies that protect against both application-level flaws and user behavior that can be exploited by threat actors.