CVE-2005-0280 in Soldner Secret Wars
Summary
by MITRE
Format string vulnerability in Soldner Secret Wars 30830 and earlier allows remote attackers to cause a denial of service (server crash) and possibly execute arbitrary code via format string specifiers in a message.
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Analysis
by VulDB Data Team • 03/26/2019
The vulnerability described in CVE-2005-0280 represents a critical format string flaw affecting Soldner Secret Wars version 30830 and earlier implementations. This type of vulnerability falls under the category of CWE-134 which specifically addresses the use of format strings without proper validation, creating a pathway for malicious input to manipulate program execution flow. The vulnerability exists within the network communication handling mechanisms of the game server, where user-supplied messages are processed through format string functions without adequate sanitization.
The technical exploitation of this vulnerability occurs when remote attackers send specially crafted messages containing format string specifiers to the affected server. These specifiers can cause the application to read from arbitrary memory locations or write data to specific memory addresses, potentially leading to server crashes or more severe exploitation outcomes. The flaw manifests in the server's message processing routines where string formatting functions like sprintf or printf are called with user-controllable data as format strings, bypassing normal input validation checks.
From an operational perspective, this vulnerability presents significant risks to server availability and system integrity. The denial of service component can be exploited by attackers to repeatedly crash the game server, disrupting legitimate gameplay and potentially causing service outages that affect multiple users simultaneously. The arbitrary code execution capability, while potentially more difficult to exploit successfully, represents a severe threat as it could allow attackers to gain control of the server, install malicious software, or use the compromised system as a launch point for further attacks against other network resources. This vulnerability directly impacts the ATT&CK technique T1203 which involves exploiting software flaws to gain access to systems.
The remediation approach for this vulnerability requires immediate implementation of proper input validation and sanitization measures within the application's message handling components. Developers should replace vulnerable format string functions with safe alternatives that do not accept user input as format specifiers, implementing strict validation that ensures all format strings are hardcoded constants rather than user-controllable variables. Additionally, the system should employ proper memory protection mechanisms such as stack canaries and address space layout randomization to mitigate potential exploitation attempts. Organizations should also implement network monitoring to detect and block suspicious message patterns that may indicate attempted exploitation of this vulnerability. The fix aligns with industry best practices for secure coding and addresses the fundamental security principle of input validation as outlined in secure software development guidelines.