PT-2022-26991 · D Link · D-Link Dir-825

Dmitry Janushkevich + 1 · Published 2022-12-28 · Updated 2023-04-08 · CVE-2022-43645

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 DIR-825 version 1.0.9/EE

Description This issue allows network-adjacent attackers to execute arbitrary code on affected installations. Authentication is not required to exploit this issue. The specific flaw exists within the IVI plugin for the xupnpd service, which listens on TCP port 4044. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this issue to execute code in the context of the admin user.

Recommendations For D-Link DIR-825 version 1.0.9/EE, as a temporary workaround, consider disabling the IVI plugin for the xupnpd service until a patch is available. Restrict access to TCP port 4044 to minimize the risk of exploitation. Avoid using user-supplied strings in the xupnpd service until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2022-43645

ZDI-22-1704

Affected Products

D-Link Dir-825

References · 5

• https://zerodayinitiative.com/advisories/ZDI-22-1704 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-43645 · Security Note
• https://osv.dev/vulnerability/CVE-2022-43645 · Vendor Advisory
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10319 · Vendor Advisory
• https://t.me/cvenotify/47793 · Telegram Post