Overview
CVE-2024-48894 describes a cleartext transmission vulnerability affecting the WEBVIEW-M functionality of Socomec DIRIS Digiware M-70 version 1.6.9. This vulnerability allows an attacker to potentially sniff network traffic and intercept sensitive information transmitted in cleartext due to a lack of proper encryption.
Technical Details
The vulnerability lies within the WEBVIEW-M component of the Socomec DIRIS Digiware M-70. Specifically, the device transmits certain data, including potentially usernames, passwords, or configuration details, without employing encryption (e.g., HTTPS). An attacker positioned on the same network segment as the device can capture this traffic using packet sniffing tools like Wireshark. A specially crafted HTTP request can trigger the vulnerable behavior.
This cleartext transmission occurs during regular operation of the WEBVIEW-M interface when communicating with the device’s backend. This means that any credentials or sensitive data used during device configuration or monitoring can be compromised if an attacker is eavesdropping on the network traffic.
CVSS Analysis
The vulnerability has been assigned a CVSS score of 5.9 (MEDIUM).
- CVSS Vector: Details of the specific CVSS vector may be found at the Talos Intelligence link provided in the references.
- Explanation: The “Medium” severity rating reflects the potential for sensitive information disclosure. While an attacker needs to be on the same network segment, the relative ease of intercepting cleartext traffic and the potential impact of exposed credentials make this a significant risk.
Possible Impact
Successful exploitation of this vulnerability could have several serious consequences:
- Credential Theft: Attackers could steal usernames and passwords used to access the device’s configuration interface or other services.
- Unauthorized Access: Stolen credentials could allow attackers to gain unauthorized access to the Socomec DIRIS Digiware M-70, potentially allowing them to modify device settings, disrupt operations, or access sensitive data stored on or accessible through the device.
- Lateral Movement: Compromised credentials could be reused on other systems on the network, potentially leading to further compromise.
- Data Breach: If the device handles or transmits sensitive data (e.g., power consumption data, energy billing information), this data could be exposed to unauthorized parties.
Mitigation and Patch Steps
Socomec has released information regarding this vulnerability. Users are advised to take the following steps:
- Apply the Patch: Check the Socomec website for available firmware updates for your DIRIS Digiware M-70 device. Applying the latest patch is the primary method of mitigating this vulnerability.
- Network Segmentation: Isolate the DIRIS Digiware M-70 device on a separate network segment with restricted access. This limits the attacker’s ability to sniff network traffic.
- Monitor Network Traffic: Implement network monitoring solutions to detect suspicious activity, such as unusual network traffic patterns or unauthorized access attempts.
- Strong Passwords: Enforce strong password policies for all user accounts on the device and regularly change passwords.
- Disable Unnecessary Services: If possible, disable any unnecessary services or features on the device that are not required for its intended function.
- Use VPN: When remotely accessing the device, ensure to utilize a VPN connection to encrypt the communication channel and prevent eavesdropping.
