PT-2021-6096 · D Link · D-Link Dir-878+1

Published 2021-12-13 · Updated 2022-07-12 · CVE-2021-44880

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/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-878 versions 1.30B08 Hotfix 02 D-Link DIR-882 versions 1.30B06 Hotfix 02

Description The issue is related to a command injection vulnerability in the system function of D-Link devices. This vulnerability allows attackers to execute arbitrary commands via a crafted HNAP1 POST request. The vulnerability is associated with the failure to neutralize special elements used in the operating system command. Exploitation of the vulnerability may allow a remote attacker to execute arbitrary commands by sending specially crafted HNAP1 POST requests.

Recommendations For D-Link DIR-878 version 1.30B08 Hotfix 02, consider disabling the system function until a patch is available. For D-Link DIR-882 version 1.30B06 Hotfix 02, restrict access to the HNAP1 POST request endpoint to minimize the risk of exploitation. As a temporary workaround, avoid using the HNAP1 protocol until the issue is resolved.

Exploit

Fix

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

BDU:2022-00761

CVE-2021-44880

Affected Products

D-Link Dir-878

D-Link Dir-882

References · 9

• 🔥❌ https://github.com/pjqwudi/my_vuln/blob/main/D-link/vuln_2/2.md · Exploit, Deleted
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10286 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-44880 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-44880 · Security Note
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10287 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00761 · Security Note
• https://t.me/cibsecurity/36817 · Telegram Post
• https://vuldb.com/ru/?id.192215 · Note