CVE-2017-6030
First published: Fri Jun 30 2017(Updated: )
A Predictable Value Range from Previous Values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version 1.5.0.0, Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The affected products generate insufficiently random TCP initial sequence numbers that may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections.
Credit: ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Schneider-electric Modicon M241 Firmware | <=4.0.3.20 | |
| Schneider-electric Modicon M241 | ||
| Schneider-electric Modicon M251 Firmware | <=4.0.3.20 | |
| Schneider-electric Modicon M251 | ||
| Schneider-electric Modicon M221 Firmware | <=1.1.1.5 | |
| Schneider-electric Modicon M221 |
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Reference Links
- collector/nvd-index
- agent/weakness
- agent/references
- agent/severity
- agent/author
- agent/tags
- agent/type
- agent/event
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- agent/description
- collector/mitre-cve
- source/MITRE
- vendor/schneider-electric
- canonical/schneider-electric modicon m241 firmware
- version/schneider-electric modicon m241 firmware/4.0.3.20
- canonical/schneider-electric modicon m241
- canonical/schneider-electric modicon m251 firmware
- version/schneider-electric modicon m251 firmware/4.0.3.20
- canonical/schneider-electric modicon m251
- canonical/schneider-electric modicon m221 firmware
- version/schneider-electric modicon m221 firmware/1.1.1.5
- canonical/schneider-electric modicon m221