PT-2017-13465 · D Link · D-Link Dir-850L

Pierre Kim · Published 2017-09-13 · Updated 2023-11-17 · CVE-2017-14420

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions D-Link DIR-850L REV. A versions through FW114WWb07 h2ab beta1 D-Link DIR-850L REV. B versions through FW208WWb02

Description The issue concerns the D-Link NPAPI extension, which fails to verify X.509 certificates from SSL servers. This allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Recommendations For D-Link DIR-850L REV. A versions through FW114WWb07 h2ab beta1, update the firmware to a version that verifies X.509 certificates from SSL servers. For D-Link DIR-850L REV. B versions through FW208WWb02, update the firmware to a version that verifies X.509 certificates from SSL servers.

Exploit

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2017-14420

Affected Products

D-Link Dir-850L

References · 3

• 🔥 https://pierrekim.github.io/blog/2017-09-08-dlink-850l-mydlink-cloud-0days-vulnerabilities.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2017-14420 · Security Note
• https://osv.dev/vulnerability/CVE-2017-14420 · Vendor Advisory