Auth bypass in Schneider-Electric Atv Imc Drive Controller
CVE-2019-6820
A CWE-306: Missing Authentication for Critical Function vulnerability exists which could cause a modification of device IP configuration (IP address, network mask and gateway IP address) when a specific Ethernet frame is received in all versions of: Modicon M100, Modicon M200, Modicon M221, ATV IMC drive controller, Modicon M241, Modicon M251, Modicon M258, Modicon LMC058, Modicon LMC078, PacDrive Eco ,PacDrive Pro, PacDrive Pro2
Vulnerability class: Broken Authentication
EPSS: 0.013 (67.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
Affected products
- Schneider-electric Atv_imc_drive_controller
- Schneider-electric Atv_imc_drive_controller_firmware
- Schneider-electric Modicon_lmc058
- Schneider-electric Modicon_lmc058_firmware
- Schneider-electric Modicon_lmc078
- Schneider-electric Modicon_lmc078_firmware
- Schneider-electric Modicon_m100
- Schneider-electric Modicon_m100_firmware
- Schneider-electric Modicon_m200
- Schneider-electric Modicon_m200_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cybersecurity@se.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-6820?
- CVE-2019-6820 is a high-severity vulnerability in Schneider-Electric Atv Imc Drive Controller, classified under Missing Authentication for Critical Function. CVSS score: 8.2/10. Published 2019-05-22.
- How severe is CVE-2019-6820?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2019-6820 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.