Quantum Secular Labs / Blog / Advisories
CVE-2017-9385: Getvera Veraedge Firmware: Path traversal
CVE-2017-9385 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists 2 affected products, including Getvera Veraedge Firmware. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
An issue was discovered on Vera Veralite 1.7.481 devices. The device has an additional OpenWRT interface in addition to the standard web interface which allows the highest privileges a user can obtain on the device. This web interface uses root as the username and the password in the /etc/cmh/cmh.conf file which can be extracted by an attacker using a directory traversal attack, and then log in to the device with the highest privileges.
Severity breakdown
CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Affected products
- Getvera Veraedge Firmware: up to and including 1.7.19
- Getvera Veralite Firmware: up to and including 1.7.481