PT-2022-4847 · D Link · D-Link Dir-2150

Published 2022-04-13 · Updated 2023-02-02 · CVE-2022-40719

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-2150 version 4.0.1

Description This issue allows network-adjacent attackers to execute arbitrary commands on affected installations of D-Link DIR-2150 routers. Authentication is not required to exploit this issue. The specific flaw exists within the xupnpd generic.lua plugin for the xupnpd service, which listens on TCP port 4044 by default. When parsing the feed parameter, the process does not properly validate 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 service account.

Recommendations For D-Link DIR-2150 version 4.0.1, as a temporary workaround, consider disabling the xupnpd service until a patch is available. Restrict access to the xupnpd generic.lua plugin to minimize the risk of exploitation. Avoid using the feed parameter in the affected API endpoint 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

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

BDU:2022-05907

CVE-2022-40719

ZDI-22-1223

Affected Products

D-Link Dir-2150

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2022-40719 · Security Note
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10304 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-22-1223 · Security Note
• https://bdu.fstec.ru/vul/2022-05907 · Security Note
• https://osv.dev/vulnerability/CVE-2022-40719 · Vendor Advisory
• https://t.me/cibsecurity/56907 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2022091610 · Note