PT-2021-17275 · Fiberhome · Fiberhome Hg6245D

Pierre Kim · Published 2021-02-10 · Updated 2021-02-11 · CVE-2021-27156

Positive Technologies (AI Summary)

CVSS v3.1

9.8

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: FiberHome HG6245D versions through RP2613

Description: An issue was discovered where the web daemon on the affected devices contains credentials for an ISP that are equal to the last part of the MAC address of the br0 interface.

Recommendations: For FiberHome HG6245D versions through RP2613, consider changing the default credentials to prevent unauthorized access, and restrict access to the web daemon until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Using Hardcoded Credentials

Weakness Enumeration

CWE-798

Related Identifiers

CVE-2021-27156

Affected Products

Fiberhome Hg6245D

References · 3

• 🔥 https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-hardcoded-credentials · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-27156 · Security Note
• https://osv.dev/vulnerability/CVE-2021-27156 · Vendor Advisory