Auth bypass in Gok Smartbox 4 Lan
CVE-2019-12254
In multiple Tecson Tankspion and GOKs SmartBox 4 products the affected application doesn't properly restrict access to an endpoint that is responsible for saving settings, to a unauthenticated user with limited access rights. Based on the lack of adequately implemented access-control rules, by accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to change the application settings without authenticating at all, which violates originally laid ACL rules.
Vulnerability class: Broken Authentication
EPSS: 0.012 (66.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Gok Smartbox 4 Lan — versions unspecified
- Gok Smartbox_4_lan
- Gok Smartbox_4_lan_firmware
- Gok Smartbox 4 Lan Pro — versions unspecified
- Gok Smartbox_4_lan_pro
- Gok Smartbox_4_lan_pro_firmware
- Tecson E-litro Net — versions unspecified
- Tecson E-litro_net
- Tecson E-litro_net_firmware
- Tecson Lx-net — versions unspecified
Weakness classification (CWE)
References
- info@cert.vde.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-12254?
- CVE-2019-12254 is a critical-severity vulnerability in Gok Smartbox 4 Lan, classified under Improper Authentication. CVSS score: 9.8/10. Published 2022-05-06.
- How severe is CVE-2019-12254?
- Critical severity. CVSS v3 base score is 9.8 out of 10.