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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.027 (85.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Abb Vsn300
- Abb Vsn300 Firmware
- Abb Vsn300 For React
- Abb Vsn300 For React Firmware — versions 2.1.3
- Abb Vsn300 Wifi Logger Card — versions ABB VSN300 WiFi Logger Card
Weakness classification (CWE)
References
- www.securityfocus.com/bid/99558 (VDB Entry, Third Party Advisory, vdb-entry)
- search.abb.com/library/Download.aspx (Vendor Advisory)
- ics-cert.us-cert.gov/advisories/ICSA-17-192-03 (US Government Resource, Third Party Advisory)
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.