VulnerabilityModified
CVE-2017-6034
An authentication bypass by capture-replay issue was discovered in Schneider Electric Modicon Modbus Protocol.
CRITICAL 9.8EPSS 5.18%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An authentication bypass by capture-replay issue was discovered in Schneider Electric Modicon Modbus Protocol. Sensitive information is transmitted in cleartext in the Modicon Modbus protocol, which may allow an attacker to replay the following commands: run, stop, upload, and download.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.18% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-294, CWE-287
- Affected
- schneider-electric/modbus firmware
- Source
- ics-cert@hq.dhs.gov
References
- http://www.securityfocus.com/bid/97562Third Party Advisory, VDB Entry
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2017/icsa-17-101-01.json
- https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01Third Party Advisory, US Government Resource
- https://www.se.com/us/en/download/document/SEVD-2017-065-01/
- http://www.securityfocus.com/bid/97562Third Party Advisory, VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.