Zero-day Vulnerability Database

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Zero-day vulnerabilities discovered: 1

Backdoor in D-Link routers

Security bypass

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to an error in the alpha_auth_check() function. By setting the user agent string to xmlset_roodkcableoj28840ybtide, an attacker can send an HTTP request to bypass authentication and obtain administrative access to the device.

Successful exploitation of the vulnerability results in full access to the vulnerable system.

Note: the vulnerability was being actively exploited.

Software: Dir-100

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