CVE-2005-0906 in Tincat
Summary
by MITRE
Buffer overflow in a player logging function in the Tincat network library 2.x before 2.0.28, as used in games such as Sacred and The Settlers: Heritage of Kings, allows remote attackers to execute arbitrary code.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 02/03/2025
The vulnerability identified as CVE-2005-0906 represents a critical buffer overflow flaw within the Tincat network library version 2.x prior to 2.0.28. This issue specifically affects the player logging function implementation and has been exploited in popular gaming environments including Sacred and The Settlers: Heritage of Kings. The flaw arises from inadequate input validation and memory management practices within the network communication layer that processes player-related data during game sessions. The buffer overflow vulnerability stems from the library's failure to properly bounds-check data received from network connections when logging player activities, creating an exploitable condition that can be leveraged by remote attackers to gain unauthorized code execution privileges.
The technical nature of this vulnerability aligns with CWE-121, which describes buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations. The flaw operates through network-based attack vectors where malicious actors can craft specially formatted packets containing oversized data payloads that exceed the allocated buffer space in the logging function. This condition creates a situation where the program's execution flow can be manipulated through stack corruption, potentially allowing attackers to inject and execute arbitrary code with the privileges of the affected application. The vulnerability's remote exploitability means that attackers do not require local access or physical presence to exploit the flaw, making it particularly dangerous in multiplayer gaming environments where network communication is essential.
The operational impact of CVE-2005-0906 extends beyond simple code execution capabilities to encompass broader security implications for gaming networks and multiplayer environments. When exploited, this vulnerability can enable attackers to take control of game servers, manipulate player data, disrupt gameplay sessions, and potentially establish persistent access points within gaming infrastructures. The vulnerability's presence in widely distributed games like Sacred and The Settlers: Heritage of Kings means that thousands of players and game servers could be simultaneously at risk. Additionally, the exploitation could facilitate more sophisticated attacks such as distributed denial of service attacks against gaming networks or the establishment of backdoors for further compromise of gaming environments and player accounts.
Mitigation strategies for this vulnerability should focus on immediate patch deployment to upgrade the Tincat network library to version 2.0.28 or later, which contains the necessary bounds-checking fixes and memory management improvements. Network administrators should implement defensive measures including firewall rules to restrict unnecessary network access to gaming servers, intrusion detection systems to monitor for suspicious packet patterns, and regular security audits to identify potential exploitation attempts. The vulnerability's classification under ATT&CK technique T1203, which covers Exploitation for Client Execution, indicates that defensive measures should include application whitelisting, network segmentation, and endpoint protection solutions that can detect and block malicious payload delivery. Organizations should also consider implementing network monitoring solutions that can identify anomalous data flows consistent with buffer overflow exploitation attempts, particularly in gaming environments where network communication patterns are well-defined and predictable.