#VU50807 Use of hard-coded credentials in SolarCity Solar Monitoring Gateway and ConnectPort X2e - CVE-2020-9306

Vulnerability identifier: #VU50807

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-9306

CWE-ID: CWE-798

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SolarCity Solar Monitoring Gateway
Other software / Other software solutions
ConnectPort X2e
Hardware solutions / Firmware

Vendor: Tesla
Digi International Inc.

Description

The vulnerability allows a local user to gain full access to vulnerable system.

The vulnerability exists due to the Digi ConnectPort X2e uses a .pyc file to store the cleartext password for the python user account. A local user can access the affected system using the hard-coded credentials.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SolarCity Solar Monitoring Gateway: 5.46.43

ConnectPort X2e: before 3.2.30.6

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External links
https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2020-0019/FEYE-2020-0019.md
https://www.fireeye.com/blog/threat-research.html
https://www.fireeye.com/blog/threat-research/2021/02/solarcity-exploitation-of-x2e-iot-device-part-one.html
https://www.fireeye.com/blog/threat-research/2021/02/solarcity-exploitation-of-x2e-iot-device-part-two.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.