Multiple vulnerabilities in Digi ConnectPort X2e



Published: 2021-02-18
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2020-9306
CVE-2020-12878
CWE ID CWE-798
CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
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SolarCity Solar Monitoring Gateway
Other software / Other software solutions

ConnectPort X2e
Hardware solutions / Firmware

Vendor Tesla

Security Advisory

1) Use of hard-coded credentials

Risk: Low

CVSSv3: 6.8 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-9306

CWE-ID: CWE-798 - Use of Hard-coded Credentials

Exploit availability: No

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

CPE 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

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.

2) Permissions, Privileges, and Access Controls

Risk: Medium

CVSSv3: 7.7 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-12878

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions. A remote authenticated attacker can escalate privileges from the python user to root via a symlink attack that uses chown, related to /etc/init.d/S50dropbear.sh and the /WEB/python/.ssh directory.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ConnectPort X2e: before 3.2.30.6

CPE External links

https://github.com/fireeye/Vulnerability-Disclosures
https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2020-0020/FEYE-2020-0020.md
https://www.digi.com/support/productdetail?pid=5570
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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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



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