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8.8
CVSSv3

CVE-2021-38111

Published: 04/08/2021 Updated: 21/11/2023
CVSS v2 Base Score: 5.8 | Impact Score: 6.4 | Exploitability Score: 6.5
CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8
VMScore: 516
Vector: AV:A/AC:L/Au:N/C:P/I:P/A:P
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Vulnerability Summary

The DEF CON 27 badge allows remote malicious users to exploit a buffer overflow by sending an oversized packet via the NFMI (Near Field Magnetic Induction) protocol.

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defcon def_con_27_firmware -

Github Repositories

https://github.com/skintigh/defcon27_badge_sdr

Hack the DEF CON 27 (2019) badge. Send and receive signals, decode them, craft custom packets.

CVEs resulting from this work: Overflow: cvemitreorg/cgi-bin/cvenamecgi?name=CVE-2021-38111 Off-by-one: cvemitreorg/cgi-bin/cvenamecgi?name=CVE-2021-46869 pending Race Condition: cvemitreorg/cgi-bin/cvenamecgi?name=CVE-2021-46870 pending defcon27_badge_sdr Info and Setup Introduction The Defcon 27 badge communicates via NFMI bursts Each burst h

References

CWE-120https://defcon.org/html/defcon-29/dc-29-speakers.html#kintighhttps://github.com/skintigh/defcon27_badge_sdrhttps://nvd.nist.govhttps://github.com/skintigh/defcon27_badge_sdr
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-29895blind SQL injectionCVE-2024-5064CVE-2023-52677CVE-2023-52682CVE-2024-30051CVE-2024-35849remote attackersremote
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