Draytek Vigor Router/Access Point/Myvigor hard-coded key

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Draytek Vigor Router, Access Point and Myvigor and classified as problematic. Affected is an unknown function. Executing a manipulation can lead to hard-coded key. This vulnerability is handled as CVE-2023-33778. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Draytek Vigor Router, Access Point and Myvigor (Router Operating System) (the affected version is unknown). It has been declared as problematic. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a hard-coded key vulnerability. The CWE definition for the vulnerability is CWE-321. The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Draytek Vigor Routers firmware versions below 3.9.6/4.2.4, Access Points firmware versions below v1.4.0, Switches firmware versions below 2.6.7, and Myvigor firmware versions below 2.3.2 were discovered to use hardcoded encryption keys which allows attackers to bind any affected device to their own account. Attackers are then able to create WCF and DrayDDNS licenses and synchronize them from the website.

The weakness was released 06/01/2023. The advisory is shared for download at gist.github.com. This vulnerability was named CVE-2023-33778 since 05/22/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-37930). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.0

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Hard-coded key
CWE: CWE-321 / CWE-320
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/22/2023 🔍
06/01/2023 +10 days 🔍
06/01/2023 +0 days 🔍
01/06/2026 +950 days 🔍

Sourcesinfo

Advisory: gist.github.com
Status: Confirmed

CVE: CVE-2023-33778 (🔍)
GCVE (CVE): GCVE-0-2023-33778
GCVE (VulDB): GCVE-100-230416
EUVD: 🔍

Entryinfo

Created: 06/01/2023 06:35
Updated: 01/06/2026 15:29
Changes: 06/01/2023 06:35 (37), 06/25/2023 13:33 (11), 01/09/2025 22:18 (26), 01/06/2026 15:29 (1)
Complete: 🔍
Cache ID: 216::103

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

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