H3C Magic Telnet Service /etc/shadow weak password

Summaryinfo

A vulnerability was found in H3C Magic. It has been classified as critical. The affected element is an unknown function of the file /etc/shadow of the component Telnet Service. Performing a manipulation results in weak password. This vulnerability is identified as CVE-2025-61330. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in H3C Magic (unknown version). This affects an unknown code block of the file /etc/shadow of the component Telnet Service. The manipulation with an unknown input leads to a weak password vulnerability. CWE is classifying the issue as CWE-521. The product does not require that users should have strong passwords, which makes it easier for attackers to compromise user accounts. This is going to have an impact on confidentiality. The summary by CVE is:

A hard-coded weak password vulnerability has been discovered in all Magic-branded devices from Chinese network equipment manufacturer H3C. The vulnerability stems from the use of a hard-coded weak password for the root account in the /etc/shadow configuration or even the absence of any password at all. Some of these devices have the Telnet service enabled by default, or users can choose to enable the Telnet service in other device management interfaces (e.g. /debug.asp or /debug_telnet.asp). In addition, these devices have related interfaces called Virtual Servers, which can map the devices to the public network, posing the risk of remote attacks. Therefore, attackers can obtain the highest root privileges of the devices through the Telnet service using the weak password hardcoded in the firmware (or without a password), and remote attacks are possible.

It is possible to read the advisory at notion.so. This vulnerability is uniquely identified as CVE-2025-61330 since 09/26/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/16/2025). The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

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

Vendor

• H3C

Name

• Magic

License

• commercial

CPE 2.3info

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CPE 2.2info

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