Auth bypass in Schneider-Electric Interactive Graphical Scada System
CVE-2020-7479
A CWE-306: Missing Authentication for Critical Function vulnerability exists in IGSS (Versions 14 and prior using the service: IGSSupdate), which could allow a local user to execute processes that otherwise require escalation privileges when sending local network commands to the IGSS Update Service.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Schneider-Electric Interactive Graphical Scada System
- Igss (Interactive Graphical Scada System) (Igss Version Prior To 14.0.0.20009) — versions IGSS (Interactive Graphical SCADA System) (Versions 14 and prior using the service: IGSSupdate)
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.se.com/ww/en/download/document/SEVD-2020-070-01/ (Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-20-370/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7479?
- CVE-2020-7479 is a high-severity vulnerability in Schneider-Electric Interactive Graphical Scada System, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2020-03-23.
- How severe is CVE-2020-7479?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-7479 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.