Buffer overflow in Platinum Policy Compliance Manager (PCM) 7.0 allows remote attackers to execute arbitrary commands via a long string to the Agent port (1827), which is handled by smaxagent.exe.
Platinum Policy Compliance Manager (PCM) 7.0 suffers from a critical buffer overflow vulnerability allowing remote attackers to execute arbitrary code on vulnerable systems. Exploiting this flaw grants attackers complete control, potentially leading to data breaches, system compromise, and denial-of-service. This vulnerability is easily exploited and poses a significant risk to organizations using the affected software.
Step 1: Target Identification: The attacker identifies systems running Platinum PCM 7.0 and determines the IP address and port 1827 (the agent port).
Step 2: Payload Creation: The attacker crafts a malicious payload, typically including shellcode designed to execute a command (e.g., opening a reverse shell). This payload is prepended with a long string of characters to overflow the buffer.
Step 3: Payload Delivery: The attacker sends the crafted payload to the vulnerable system via a network connection to port 1827.
Step 4: Buffer Overflow Trigger: The smaxagent.exe process receives the oversized input. Due to the lack of bounds checking, the input overflows the allocated buffer.
Step 5: Code Execution: The overflow overwrites the return address on the stack. When smaxagent.exe attempts to return from the function, it jumps to the attacker-controlled address, executing the injected shellcode.
Step 6: Command Execution/System Compromise: The shellcode executes, granting the attacker control of the system, allowing them to execute arbitrary commands, install malware, or steal sensitive information.
The vulnerability lies within the smaxagent.exe process, which handles incoming connections on port 1827. The root cause is a buffer overflow in the way smaxagent.exe processes data received from the agent port. Specifically, the software fails to properly validate the size of the input string received. When a string exceeding the allocated buffer size is sent, it overwrites adjacent memory locations, including potentially the return address. By carefully crafting the input, an attacker can overwrite the return address with the address of malicious code (shellcode) placed within the overflowed buffer, leading to arbitrary code execution. The lack of input validation and the absence of modern memory protection mechanisms (like ASLR or DEP) exacerbate the vulnerability.