Xiaomi Mi 5s Gyroscope Ultrasound input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Xiaomi Mi 5s. It has been declared as problematic. Affected is an unknown function of the component Gyroscope. Executing a manipulation can lead to input validation (Ultrasound). This vulnerability is handled as CVE-2018-20823. The physical device can be targeted for the attack. There is not any exploit available. This vulnerability has a historic impact due to its background and reception.

Detailsinfo

A vulnerability classified as problematic was found in Xiaomi Mi 5s (version now known). This vulnerability affects some unknown processing of the component Gyroscope. The manipulation with an unknown input leads to a input validation vulnerability (Ultrasound). The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

The gyroscope on Xiaomi Mi 5s devices allows attackers to cause a denial of service (resonance and false data) via a 20.4 kHz audio signal, aka a MEMS ultrasound attack.

The weakness was released 04/25/2019. This vulnerability was named CVE-2018-20823 since 04/25/2019. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/07/2023). This vulnerability has a historic impact due to its background and reception.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.9

VulDB Base Score: 2.4
VulDB Temp Score: 2.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Ultrasound
Class: Input validation / Ultrasound
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

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

04/25/2019 🔍
04/25/2019 +0 days 🔍
04/26/2019 +1 days 🔍
09/07/2023 +1595 days 🔍

Sourcesinfo

Advisory: hackaday.com
Status: Not defined

CVE: CVE-2018-20823 (🔍)
GCVE (CVE): GCVE-0-2018-20823
GCVE (VulDB): GCVE-100-134056

Entryinfo

Created: 04/26/2019 07:10
Updated: 09/07/2023 07:37
Changes: 04/26/2019 07:10 (36), 06/02/2020 10:09 (17), 09/07/2023 07:37 (3)
Complete: 🔍
Cache ID: 216::103

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