Auth bypass in Abb Vsn300
CVE-2017-7920
An Improper Authentication issue was discovered in ABB VSN300 WiFi Logger Card versions 1.8.15 and prior, and VSN300 WiFi Logger Card for React versions 2.1.3 and prior. By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access internal information about status and connected devices without authenticating.
Vulnerability class: Broken Authentication
EPSS: 0.027 (84.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Abb Vsn300
- Abb Vsn300_firmware
- Abb Vsn300_for_react
- Abb Vsn300_for_react_firmware — versions 2.1.3
- N/a Abb Vsn300 Wifi Logger Card — versions ABB VSN300 WiFi Logger Card
Weakness classification (CWE)
References
- ics-cert@hq.dhs.gov (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- ics-cert@hq.dhs.gov (x_refsource_MISC, Vendor Advisory)
- ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-7920?
- CVE-2017-7920 is a high-severity vulnerability in Abb Vsn300, classified under Improper Authentication. CVSS score: 7.5/10. Published 2017-08-07.
- How severe is CVE-2017-7920?
- High severity. CVSS v3 base score is 7.5 out of 10.