Belden GarrettCom Magnum 6K Managed Switch up to 4.6.0/4.7.6 hard-coded credentials

Summaryinfo

A vulnerability marked as critical has been reported in Belden GarrettCom Magnum 6K Managed Switch and GarrettCom Magnum 10K Managed Switch up to 4.6.0/4.7.6. This affects an unknown part. The manipulation leads to hard-coded credentials. This vulnerability is uniquely identified as CVE-2017-20234. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Belden GarrettCom Magnum 6K Managed Switch and GarrettCom Magnum 10K Managed Switch up to 4.6.0/4.7.6. It has been rated as very critical. This issue affects an unknown code. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. Using CWE to declare the problem leads to CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

GarrettCom Magnum 6K and 10K managed switches contain an authentication bypass vulnerability that allows unauthenticated attackers to gain unauthorized access by exploiting a hardcoded string in the authentication mechanism. Attackers can bypass login controls to access administrative functions and sensitive switch configuration without valid credentials.

It is possible to read the advisory at assets.belden.com. The identification of this vulnerability is CVE-2017-20234 since 04/03/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/21/2026). The attack technique deployed by this issue is T1110.001 according to MITRE ATT&CK.

Upgrading to version 4.7.7 eliminates this vulnerability.

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Productinfo

Vendor

• Belden

Name

• GarrettCom Magnum 6K Managed Switch
• GarrettCom Magnum 10K Managed Switch

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6.0
• 4.7.0
• 4.7.1
• 4.7.2
• 4.7.3
• 4.7.4
• 4.7.5
• 4.7.6

CPE 2.3info

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CPE 2.2info

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Entryinfo

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