CVE-2017-7902 (GCVE-0-2017-7902)

Vulnerability from cvelistv5 – Published: 2017-06-30 02:35 – Updated: 2024-08-05 16:19
VLAI
Summary
A "Reusing a Nonce, Key Pair in Encryption" 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. The affected product reuses nonces, which may allow an attacker to capture and replay a valid request until the nonce is changed.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
icscert CNA under the icscert root
CNA scorecard B 75/100 over 343 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
n/a Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400 Affected: Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400
Date Public
2017-06-29 00:00
Show details on NVD website
To clipboard 

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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A \"Reusing a Nonce, Key Pair in Encryption\" 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. The affected product reuses nonces, which may allow an attacker to capture and replay a valid request until the nonce is changed."
          },
          {
            "lang": "es",
            "value": "Se detect\u00f3 un problema de \"Reusing a Nonce, Key Pair in Encryption\" en los controladores de l\u00f3gica programable MicroLogix 1100 de Allen-Bradley  1763-L16AWA, Serie A y B, Versi\u00f3n 16.00 y versiones anteriores; 1763-L16BBB, Serie A y B, Versi\u00f3n 16.00 y versiones anteriores; 1763-L16BWA, Serie A y B, Versi\u00f3n 16.00 y versiones anteriores; y 1763-L16DWD, Serie A y B, Versi\u00f3n 16.00 y versiones anteriores y Controladores l\u00f3gicos programables Allen-Bradley MicroLogix 1400 1766-L32AWA, Serie A y B, Versi\u00f3n 16.00 y versiones anteriores; 1766-L32BWA, Series A y B, versi\u00f3n 16.00 y versiones anteriores; 1766-L32BWAA, Serie A y B, Versi\u00f3n 16.00 y versiones anteriores; 1766-L32BXB, Serie A y B, Versi\u00f3n 16.00 y versiones anteriores; 1766-L32BXBA, Serie A y B, Versi\u00f3n 16.00 y versiones anteriores; y 1766-L32AWAA, Serie A y B, Versi\u00f3n 16.00 y versiones anteriores. El producto afectado reutiliza nonces, lo que puede permitir que un atacante capture y reproduzca una solicitud v\u00e1lida hasta que se cambie el nonce."
          }
        ],
        "id": "CVE-2017-7902",
        "lastModified": "2026-05-13T00:24:29.033",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
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                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 5.0,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
                "version": "2.0"
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              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
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              "source": "nvd@nist.gov",
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                "scope": "UNCHANGED",
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                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "published": "2017-06-30T03:29:00.827",
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            "source": "ics-cert@hq.dhs.gov",
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        "sourceIdentifier": "ics-cert@hq.dhs.gov",
        "vulnStatus": "Modified",
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                "value": "CWE-323"
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    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

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