TP-LINK TL-WR840N EU 6.20 UART Console missing authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
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.
6.8$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in TP-LINK TL-WR840N EU 6.20. The impacted element is an unknown function of the component UART Console. Such manipulation leads to missing authentication. This vulnerability is uniquely identified as CVE-2022-29402. The attack can be executed directly on the physical device. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in TP-LINK TL-WR840N EU 6.20 (Router Operating System). Affected by this issue is an unknown code block of the component UART Console. The manipulation with an unknown input leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 05/26/2022. The advisory is available at k4m1ll0.com. This vulnerability is handled as CVE-2022-29402 since 04/16/2022. The technical details are unknown and an exploit is not available.

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

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.8
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.8
CNA Vector (MITRE): 🔍

CVSSv2info

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

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

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

04/16/2022 🔍
05/26/2022 +40 days 🔍
05/26/2022 +0 days 🔍
05/30/2022 +4 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: k4m1ll0.com
Status: Not defined

CVE: CVE-2022-29402 (🔍)
GCVE (CVE): GCVE-0-2022-29402
GCVE (VulDB): GCVE-100-200702

Entryinfo

Created: 05/26/2022 08:29
Updated: 05/30/2022 09:27
Changes: 05/26/2022 08:29 (48), 05/30/2022 09:27 (1)
Complete: 🔍
Cache ID: 216::103

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