The Conexus telemetry protocol utilized within Medtronic MyCareLink Monitor versions 24950 and 24952, CareLink Monitor version 2490C, CareLink 2090 Programmer, Amplia CRT-D, Claria CRT-D, Compia CRT-D, Concerto CRT-D, Concerto II CRT-D, Consulta CRT-D, Evera ICD, Maximo II CRT-D and ICD, Mirro ICD, Nayamed ND ICD, Primo ICD, Protecta ICD and CRT-D, Secura ICD, Virtuoso ICD, Virtuoso II ICD, Visia AF ICD, and Viva CRT-D does not implement authentication or authorization. An attacker with adjacent short-range access to an affected product, in situations where the product’s radio is turned on, can inject, replay, modify, and/or intercept data within the telemetry communication. This communication protocol provides the ability to read and write memory values to affected implanted cardiac devices; therefore, an attacker could exploit this communication protocol to change memory in the implanted cardiac device.
Published 2019-03-25 22:29:01
Updated 2020-10-06 13:19:18
Source ICS-CERT
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Products affected by CVE-2019-6538

Exploit prediction scoring system (EPSS) score for CVE-2019-6538

0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-6538

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.3
LOW AV:A/AC:L/Au:N/C:N/I:P/A:N
6.5
2.9
NIST
6.5
MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
2.8
3.6
NIST

CWE ids for CVE-2019-6538

  • The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
    Assigned by: ics-cert@hq.dhs.gov (Secondary)
  • The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
    Assigned by: nvd@nist.gov (Primary)
  • The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-6538

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