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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
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.
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
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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:-:*:*:*:*:*:*:*
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 2:54:42 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 2:54:48 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 2:54:50 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 2:54:58 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 2:44:16 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 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 2:44:56 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 2:44:57 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 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 NIST8/26/2021 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 NIST8/19/2021 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
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 2:21:36 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 2:21:40 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:-:*:*:*:*:*:*:*
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
CVSS V3
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Added
CVSS V2
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Added
CWE
CWE-331
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:-:*:*:*:*:*:*:*
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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