DEF CON DEF CON 27 Badge NFMI buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in DEF CON DEF CON 27 Badge. This issue affects some unknown processing of the component NFMI. Executing a manipulation can lead to buffer overflow. This vulnerability appears as CVE-2021-38111. The physical device can be targeted for the attack. In addition, an exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in DEF CON DEF CON 27 Badge (affected version unknown). This vulnerability affects an unknown functionality of the component NFMI. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 08/05/2021. The advisory is available at defcon.org. This vulnerability was named CVE-2021-38111. Technical details are unknown but an exploit is available.

It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Partially

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/04/2021 🔍
08/05/2021 +1 days 🔍
08/05/2021 +0 days 🔍
05/06/2025 +1370 days 🔍

Sourcesinfo

Advisory: defcon.org
Status: Not defined

CVE: CVE-2021-38111 (🔍)
GCVE (CVE): GCVE-0-2021-38111
GCVE (VulDB): GCVE-100-180118
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/05/2021 08:03
Updated: 05/06/2025 02:57
Changes: 08/05/2021 08:03 (36), 08/08/2021 14:21 (2), 05/06/2025 02:57 (33)
Complete: 🔍
Cache ID: 216::103

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