PT-2021-17261 · Fiberhome · Fiberhome Hg6245D

Pierre Kim · Published 2021-02-10 · Updated 2021-02-12 · CVE-2021-27142

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: FiberHome HG6245D devices through RP2613

Description: An issue was discovered where the web management of the devices is done over HTTPS, using a hardcoded private key that has 0777 permissions.

Recommendations: For FiberHome HG6245D devices through RP2613, consider restricting access to the web management interface until a fix is available. As a temporary workaround, restrict the permissions of the hardcoded private key to minimize the risk of exploitation.

Exploit

Fix

Using Hardcoded Credentials

Weakness Enumeration

CWE-798

Related Identifiers

CVE-2021-27142

Affected Products

Fiberhome Hg6245D

References · 5

• 🔥 https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-ssl-certificates · Exploit
• https://osv.dev/vulnerability/CVE-2021-27142 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27142 · Security Note
• https://t.me/cvenotify/9833 · Telegram Post
• https://t.me/cvenotify/9739 · Telegram Post