PT-2017-13466 · D Link · D-Link Dir-850L

Pierre Kim · CVE-2017-14422 · Published 2017-09-13 · Updated 2023-11-08

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/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 use of a hardcoded private key in the /etc/stunnel.key file across different installations, allowing remote attackers to bypass HTTPS cryptographic protection by leveraging knowledge of this key from another installation.

Recommendations For D-Link DIR-850L REV. A versions through FW114WWb07 h2ab beta1, update the firmware to a version that does not use the hardcoded private key. For D-Link DIR-850L REV. B versions through FW208WWb02, update the firmware to a version that does not use the hardcoded private key. As a temporary workaround, consider restricting access to the device to minimize the risk of exploitation.

Exploit

Fix

Using Hardcoded Credentials

Weakness Enumeration

CWE-798

Related Identifiers

CVE-2017-14422

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-2017-14422 · Security Note
• https://osv.dev/vulnerability/CVE-2017-14422 · Vendor Advisory