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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.
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AND
OR
*cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1.1.5
OR
cpe:2.3:h:se:modicon_m221:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1.1.5
OR
cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:*
Changed
CPE Configuration
AND
OR
*cpe:2.3:o:se:modicon_m241_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0.3.20
OR
cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0.3.20
OR
cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:*
Changed
CPE Configuration
AND
OR
*cpe:2.3:o:se:modicon_m251_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0.3.20
OR
cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0.3.20
OR
cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:*
Added
CVSS V2
NIST (AV:N/AC:L/Au:N/C:N/I:P/A:P)
Removed
CVSS V2
NIST (AV:N/AC:L/Au:N/C:P/I:N/A:P)
Removed
CVSS V3
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Added
CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CPE Deprecation Remap by NIST1/31/2022 2:54:58 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:se:modicon_m221_firmware:*:*:*:*:*:*:*:* versions from (including) 1.1.1.5
OR
*cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:* versions from (including) 1.1.1.5
CPE Deprecation Remap by NIST1/31/2022 2:54:50 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
OR
*cpe:2.3:o:se:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
CPE Deprecation Remap by NIST1/31/2022 2:54:48 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
OR
*cpe:2.3:o:se:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
CPE Deprecation Remap by NIST1/31/2022 2:54:42 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:se:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
OR
*cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
CPE Deprecation Remap by NIST1/31/2022 2:54:39 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:se:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
OR
*cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
CPE Deprecation Remap by NIST1/31/2022 2:44:57 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:h:se:modicon_m241:-:*:*:*:*:*:*:*
OR
*cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST1/31/2022 2:44:56 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:h:se:modicon_m251:-:*:*:*:*:*:*:*
OR
*cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST1/31/2022 2:44:37 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:*
OR
*cpe:2.3:h:se:modicon_m221:-:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST1/31/2022 2:44:16 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:h:se:modicon_m221:-:*:*:*:*:*:*:*
OR
*cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST8/26/2021 10:43:43 AM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:*
OR
*cpe:2.3:h:se:modicon_m251:-:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST8/26/2021 10:43:42 AM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:*
OR
*cpe:2.3:h:se:modicon_m241:-:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST8/19/2021 2:21:40 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:*
OR
*cpe:2.3:h:se:modicon_m221:-:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST8/19/2021 2:21:36 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:* versions from (including) 1.1.1.5
OR
*cpe:2.3:o:se:modicon_m221_firmware:*:*:*:*:*:*:*:* versions from (including) 1.1.1.5
CPE Deprecation Remap by NIST8/19/2021 2:21:33 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
OR
*cpe:2.3:o:se:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
CPE Deprecation Remap by NIST8/19/2021 2:21:30 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
OR
*cpe:2.3:o:se:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
CVE Modified by ICS-CERT10/09/2019 7:28:35 PM
Action
Type
Old Value
New Value
Added
CWE
ICS-CERT CWE-343
Initial Analysis by NIST7/07/2017 10:35:41 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
AND
OR
*cpe:2.3:o:schneider-electric:modicon_m221_firmware:1.1.1.5:*:*:*:*:*:*:* (and previous)
OR
cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:schneider-electric:modicon_m241_firmware:4.0.3.20:*:*:*:*:*:*:* (and previous)
OR
cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:schneider-electric:modicon_m251_firmware:4.0.3.20:*:*:*:*:*:*:* (and previous)
OR
cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:*
Added
CVSS V2
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Added
CVSS V3
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Added
CWE
CWE-331
Changed
Reference Type
http://www.securityfocus.com/bid/97254 No Types Assigned
http://www.securityfocus.com/bid/97254 Third Party Advisory, VDB Entry
Changed
Reference Type
https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02 No Types Assigned
https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02 Third Party Advisory, US Government Resource
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