PT-2022-4891 · D Link · Dlink Router

Published 2022-02-17 · Updated 2023-04-21 · CVE-2022-41140

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 routers (affected versions not specified)

Description This issue allows network-adjacent attackers to execute arbitrary code on affected installations of multiple D-Link routers. Authentication is not required to exploit this issue. The specific flaw exists within the lighttpd service, which listens on TCP port 80 by default. The issue results 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 root.

Recommendations At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

BDU:2022-06048

CVE-2022-41140

ZDI-22-1290

Affected Products

Dlink Router

References · 12

• https://zerodayinitiative.com/advisories/ZDI-22-1290 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-41140 · Security Note
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10291 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-06048 · Security Note
• https://osv.dev/vulnerability/CVE-2022-41140 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-CAN-13796 · Note
• https://t.me/cvenotify/42904 · Telegram Post
• https://t.me/freedomf0x/19551 · Telegram Post
• https://t.me/pentestingnews/28245 · Telegram Post
• https://t.me/ckure/12345 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2022092126 · Note
• https://t.me/cibsecurity/56901 · Telegram Post