PT-2019-1620 · D Link · D-Link Dir-878

Published 2019-02-12 · Updated 2021-04-23 · CVE-2019-8316

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions D-Link DIR-878 version 1.12A1

Description The issue is related to a Command Injection, allowing a remote attacker to execute arbitrary code and gain a root shell. This occurs due to insufficient input validation in the SetWebFilterSettings API function, specifically when the WebFilterURLs field contains shell metacharacters. The vulnerability can be exploited via a crafted /HNAP1 POST request.

Recommendations For D-Link DIR-878 version 1.12A1, consider disabling the SetWebFilterSettings function until a patch is available to prevent exploitation. Restrict access to the /HNAP1 API endpoint to minimize the risk of exploitation. Avoid using the WebFilterURLs field in the SetWebFilterSettings API function until the issue is resolved.

Exploit

Fix

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

BDU:2019-01167

CVE-2019-8316

Affected Products

D-Link Dir-878

References · 4

• 🔥❌ https://github.com/lieanu/vuls/blob/master/dlink/DIR-878/webfilter.md · Exploit, Deleted
• https://bdu.fstec.ru/vul/2019-01167 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-8316 · Security Note
• https://osv.dev/vulnerability/CVE-2019-8316 · Vendor Advisory