TP-LINK TL-WR743ND up to 3.12.20 Firmware Image signature verification

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability has been found in TP-LINK TL-WR743ND up to 3.12.20 (Router Operating System) and classified as critical. Affected by this vulnerability is an unknown part of the component Firmware Image Handler. The manipulation with an unknown input leads to a signature verification vulnerability. The CWE definition for the vulnerability is CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An exploitable firmware modification vulnerability was discovered on TP-Link TL-WR743ND V1. An attacker can conduct a MITM (Man-in-the-Middle) attack to modify the user-uploaded firmware image and bypass the CRC check, allowing attackers to execute arbitrary code or cause a Denial of Service (DoS). This affects v3.12.20 and earlier.

The weakness was presented 12/21/2022. The advisory is shared at hackmd.io. This vulnerability is known as CVE-2022-46432 since 12/05/2022. Neither technical details nor an exploit are publicly available.

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

See VDB-216372, VDB-216385, VDB-216386 and VDB-216387 for similar entries.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.6
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Local: No
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

12/05/2022 🔍
12/21/2022 +16 days 🔍
12/21/2022 +0 days 🔍
01/21/2023 +31 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: hackmd.io
Status: Not defined

CVE: CVE-2022-46432 (🔍)
See also: 🔍

Entryinfo

Created: 12/21/2022 07:42 AM
Updated: 01/21/2023 09:20 AM
Changes: 12/21/2022 07:42 AM (38), 01/21/2023 09:20 AM (11)
Complete: 🔍
Cache ID: 98:BB3:40

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