{"containers": {"cna": {"affected": [{"product": "Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400", "vendor": "n/a", "versions": [{"status": "affected", "version": "Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400"}]}], "datePublic": "2017-06-29T00:00:00", "descriptions": [{"lang": "en", "value": "A Predictable Value Range from Previous Values issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and prior versions; 1763-L16BBB, Series A and B, Version 16.00 and prior versions; 1763-L16BWA, Series A and B, Version 16.00 and prior versions; and 1763-L16DWD, Series A and B, Version 16.00 and prior versions and Allen-Bradley MicroLogix 1400 programmable logic controllers 1766-L32AWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWAA, Series A and B, Version 16.00 and prior versions; 1766-L32BXB, Series A and B, Version 16.00 and prior versions; 1766-L32BXBA, Series A and B, Version 16.00 and prior versions; and 1766-L32AWAA, Series A and B, Version 16.00 and prior versions. Insufficiently random TCP initial sequence numbers are generated, which may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections, resulting in a denial of service for the target device."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-343", "description": "CWE-343", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2017-07-07T09:57:01", "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert"}, "references": [{"name": "1038546", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1038546"}, {"tags": ["x_refsource_MISC"], "url": "https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "ics-cert@hq.dhs.gov", "ID": "CVE-2017-7901", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400", "version": {"version_data": [{"version_value": "Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A Predictable Value Range from Previous Values issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and prior versions; 1763-L16BBB, Series A and B, Version 16.00 and prior versions; 1763-L16BWA, Series A and B, Version 16.00 and prior versions; and 1763-L16DWD, Series A and B, Version 16.00 and prior versions and Allen-Bradley MicroLogix 1400 programmable logic controllers 1766-L32AWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWAA, Series A and B, Version 16.00 and prior versions; 1766-L32BXB, Series A and B, Version 16.00 and prior versions; 1766-L32BXBA, Series A and B, Version 16.00 and prior versions; and 1766-L32AWAA, Series A and B, Version 16.00 and prior versions. Insufficiently random TCP initial sequence numbers are generated, which may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections, resulting in a denial of service for the target device."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-343"}]}]}, "references": {"reference_data": [{"name": "1038546", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1038546"}, {"name": "https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04", "refsource": "MISC", "url": "https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T16:19:29.159Z"}, "title": "CVE Program Container", "references": [{"name": "1038546", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1038546"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04"}]}]}, "cveMetadata": {"assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "assignerShortName": "icscert", "cveId": "CVE-2017-7901", "datePublished": "2017-06-30T02:35:00", "dateReserved": "2017-04-18T00:00:00", "dateUpdated": "2024-08-05T16:19:29.159Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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Se generan n\u00fameros de secuencia inicial TCP de aleatoriedad insuficientemente, lo que puede permitir a un atacante predecir los n\u00fameros de los valores anteriores. 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