PT-2021-20676 · D Link · D-Link Dap-1330

Chung96Vn + 2 · Published 2021-06-10 · Updated 2021-07-20 · CVE-2021-34830

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: D-Link DAP-1330 version 1.13B01 BETA

Description: This issue allows network-adjacent attackers to execute arbitrary code on affected installations. Authentication is not required to exploit this issue. The flaw exists within the handling of the Cookie HTTP header, resulting from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this issue to execute code in the context of the device.

Recommendations: For D-Link DAP-1330 version 1.13B01 BETA, as a temporary workaround, consider restricting access to the Cookie HTTP header until a patch is available. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2021-34830

ZDI-21-682

Affected Products

D-Link Dap-1330

References · 4

• https://osv.dev/vulnerability/CVE-2021-34830 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-682 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-34830 · Security Note
• https://t.me/cibsecurity/26194 · Telegram Post