A vulnerability was found in D-Link DIR-878 1.12B01 (Router Operating System). It has been declared as critical. Affected by this vulnerability is the function strncpy of the component HTTP Header Handler. The manipulation of the argument HNAP_AUTH with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered on D-Link DIR-878 1.12B01 devices. Because strncpy is misused, there is a stack-based buffer overflow vulnerability that does not require authentication via the HNAP_AUTH HTTP header.

The bug was discovered 02/14/2019. The weakness was presented 02/25/2019. This vulnerability is known as CVE-2019-9125 since 02/24/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/19/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 11 days. During that time the estimated underground price was around $5k-$25k.

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

See VDB-131172 for similar entry.

Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-878

Version

• 1.12B01

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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