SunGrow's back end users system iSolarCloud https://isolarcloud.com  uses an MQTT service to transport data from the user's connected devices to the user's web browser.  The MQTT server however did not have sufficient restrictions in place to limit the topics that a user could subscribe to.  While the data that is transmitted through the MQTT server is encrypted and the credentials for the MQTT server are obtained though an API call, the credentials could be used to subscribe to any topic and the encryption key can be used to decrypt all messages received. An attack with an account on iSolarCloud.com could extract MQTT credentials and the decryption key from the browser and then use an external program to subscribe to the topic '#' and thus recieve all messages from all connected devices.

Several OS command injection vulnerabilities exist in the device firmware in the /var/salia/mqtt.php script. By publishing a specially crafted message to a certain MQTT topic arbitrary OS commands can be executed with root permissions.

The devices do not implement any authentication for the web interface or the MQTT server. An attacker who has network access to the device immediately gets administrative access to the devices and can perform arbitrary administrative actions and reconfigure the devices or potentially gain access to sensitive data.

The MQTT add-on of PcVue fails to verify that a remote device’s certificate has not already expired or has not yet become valid. This allows malicious devices to present certificates that are not rejected properly. The use of a client certificate reduces the risk for random devices to take advantage of this flaw.

A vulnerability has been identified in SiPass integrated AC5102 (ACC-G2) (All versions < V6.4.8), SiPass integrated ACC-AP (All versions < V6.4.8). Affected devices expose several MQTT URLs without authentication. This could allow an unauthenticated remote attacker to access sensitive data.

umatiGateway is software for connecting OPC Unified Architecture servers with an MQTT broker utilizing JSON messages. The user interface may possibly be publicly accessible with umatiGateway's provided docker-compose file. With this access, the configuration can be viewed and altered. Commit 5d81a3412bc0051754a3095d89a06d6d743f2b16 uses `127.0.0.1:8080:8080` to limit access to the local network. For those who are unable to use this proposed patch, a firewall on Port 8080 may block remote access, but the workaround may not be perfect because Docker may also bypass a firewall by its iptable based rules for port forwarding.

SunGrow WiNet-S V200.001.00.P025 and earlier versions is missing integrity checks for firmware upgrades. Sending a specific MQTT message allows an update to an inverter or a WiNet connectivity dongle with a bogus firmware file that is located on attacker-controlled server.

sungrowpower

SunGrow iSolarCloud Android application V2.1.6.20241017 and prior contains hardcoded credentials. The application (regardless of the user account) and the cloud uses the same MQTT credentials for exchanging the device telemetry.

sungrowpower

Meshtastic is an open source mesh networking solution. In affected firmware versions crafted packets over MQTT are able to appear as a DM in client to a node even though they were not decoded with PKC. This issue has been addressed in version 2.5.19 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

meshtastic

A vulnerability was found in pihome-shc PiHome 1.77 and classified as critical. Affected by this issue is some unknown functionality of the file /ajax.php?Ajax=GetModal_MQTTEdit. The manipulation of the argument id leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

pihome

The Cloud MQTT service of the affected products supports wildcard topic subscription which could allow an attacker to obtain sensitive information from tapping the service communications.

SunGrow WiNet-SV200.001.00.P027 and earlier versions is vulnerable to heap-based buffer overflow due to bounds checks of the MQTT message content.

sungrowpower

In SunGrow WiNet-SV200.001.00.P027 and earlier versions, when decrypting MQTT messages, the code that parses specific TLV fields does not have sufficient bounds checks. This may result in a stack-based buffer overflow.

sungrowpower

SunGrow WiNet-SV200.001.00.P027 and earlier versions is vulnerable to stack-based buffer overflow when parsing MQTT messages, due to missing MQTT topic bounds checks.

sungrowpower

In SunGrow WiNet-SV200.001.00.P027 and earlier versions, when copying the timestamp read from an MQTT message, the underlying code does not check the bounds of the buffer that is used to store the message. This may lead to a stack-based buffer overflow.

sungrowpower

SunGrow WiNet-SV200.001.00.P027 and earlier versions contains hardcoded MQTT credentials that allow an attacker to send arbitrary commands to an arbitrary inverter. It is also possible to impersonate the broker, because TLS is not used to identify the real MQTT broker. This means that MQTT communications are vulnerable to MitM attacks at the TCP/IP level.

sungrowpower

The mqlink.elf is service component in Ruijie RG-EW300N with firmware ReyeeOS 1.300.1422 is vulnerable to Remote Code Execution via a modified MQTT broker message.

ruijie

Ruijie Reyee OS versions 2.206.x up to but not including 2.320.x uses an inherently dangerous function which could allow an attacker to send a malicious MQTT message resulting in devices executing arbitrary OS commands.

ruijienetworks

Ruijie Reyee OS versions 2.206.x up to but not including 2.320.x could allow an attacker to subscribe to partial possible topics in Ruijie MQTT broker, and receive partial messages being sent to and from devices.

ruijienetworks

Ruijie Reyee OS versions 2.206.x up to but not including 2.320.x could allow MQTT clients connecting with device credentials to send messages to some topics. Attackers with device credentials could issue commands to other devices on behalf of Ruijie's cloud.

ruijienetworks

Ruijie Reyee OS versions 2.206.x up to but not including 2.320.x uses weak credential mechanism that could allow an attacker to easily calculate MQTT credentials.

ruijienetworks