Vulnerability · Published Jul 15, 2021 · Assigned by zdi
CVE-2021-34829
High 8.8
In plain English
A high-severity buffer overflow in DAP-1330 from D-Link. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 84% of all known vulnerabilities).
Official description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1330 1.13B01 BETA routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the HNAP_AUTH HTTP header. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-12065.
Affected products (as reported)
Weakness: CWE-120 · Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.zerodayinitiative.com/advisories/ZDI-21-681/ x_refsource_MISC