CVE-2017-6030
published 2017-06-30CVE-2017-6030: A predictable value range from previous values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version…
PriorityP335medium6.5CVSS 3.1
AVNACLPRNUINSUCNILAL
EPSS
2.12%
79.7th percentile
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.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| schneider-electric | modicon_m221_firmware | <= 1.1.1.5 | — |
| schneider-electric | modicon_m241_firmware | <= 4.0.3.20 | — |
| schneider-electric | modicon_m251_firmware | <= 4.0.3.20 | — |
| schneider_electric | modicon_m221 | < 1.5.0.0 | 1.5.0.0 |
| schneider_electric | modicon_m241 | < 4.0.5.11 | 4.0.5.11 |
| schneider_electric | modicon_m251 | < 4.0.5.11 | 4.0.5.11 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
nvdv2.06.4MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:P
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GHSA
GHSA-w3r9-mwpj-g2c7: A Predictable Value Range from Previous Values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Versio
ghsa_unreviewed·2022-05-13
CVE-2017-6030 [MEDIUM] CWE-331 GHSA-w3r9-mwpj-g2c7: A Predictable Value Range from Previous Values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Versio
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.
CISA ICS
Schneider Electric Modicon PLCs
cisa_ics·2017-03-30
Schneider Electric Modicon PLCs
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Schneider Electric Modicon PLCs
Last RevisedMarch 30, 2017
Alert CodeICSA-17-089-02
## CVSS v3 7.5
ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: Schneider Electric
Equipment: Modicon PLCs
Vulnerability: Predictable Value Range from Previous Values, Use of Insufficiently Random Values, Insufficiently Protected Credentials
## AFFECTED PRODUCTS
The following versions of the Modicon M221, M241, and M251 programmable logic controllers (PLCs) are affected by a predictable value range from previous values vulnerability:
- Modicon M221, firmware versions prio
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2017-06-30
Published