CVE-2021-27424 (GCVE-0-2021-27424)

Vulnerability from cvelistv5 – Published: 2022-03-23 19:46 – Updated: 2025-04-16 16:40
VLAI?
Summary
GE UR firmware versions prior to version 8.1x shares MODBUS memory map as part of the communications guide. GE was made aware a “Last-key pressed” MODBUS register can be used to gain unauthorized information.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
GE UR family Affected: unspecified , < 8.1x (custom)
Create a notification for this product.
Credits
SCADA-X, DOE’s Cyber Testing for Resilient Industrial Control Systems (CyTRICS) program, Verve Industrial, and VuMetric reported these vulnerabilities to GE.
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GE was made aware a \\u201cLast-key pressed\\u201d MODBUS register can be used to gain unauthorized information.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-200 Information Exposure\"}]}]}, \"work_around\": [{\"lang\": \"en\", \"value\": \"GE recommends protecting UR IED by using network defense-in-depth practices. This includes, but is not limited to, placing UR IED inside the control system network security perimeter, and having access controls, monitoring (such as an Intrusion Detection System), and other mitigating technologies in place. \\n\\nGE recommends users refer to the UR Deployment guide for secure configuration of UR IED and system.\"}], \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2021-27424\", \"STATE\": \"PUBLIC\", \"TITLE\": \"GE UR family exposure of sensitive information to an unauthorized actor\", \"ASSIGNER\": \"ics-cert@hq.dhs.gov\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-27424\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-16T16:40:47.222Z\", \"dateReserved\": \"2021-02-19T00:00:00.000Z\", \"assignerOrgId\": \"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6\", \"datePublished\": \"2022-03-23T19:46:25.000Z\", \"assignerShortName\": \"icscert\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.