CVE-2021-27165
FiberHome HG6245D Telnet Daemon Authentication Bypass
Description
An issue was discovered on FiberHome HG6245D devices through RP2613. The telnet daemon on port 23/tcp can be abused with the gpon/gpon credentials.
INFO
Published Date :
Feb. 10, 2021, 7:15 p.m.
Last Modified :
Feb. 12, 2021, 1:01 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-27165 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-27165.
| URL | Resource |
|---|---|
| https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#telnet-linux-hardcoded-credentials | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
This is a simple telnet honeypot written in C# that can be used to monitor and log telnet connection attempts.
C#
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-27165 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-27165 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Feb. 12, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#telnet-linux-hardcoded-credentials No Types Assigned https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#telnet-linux-hardcoded-credentials Exploit, Third Party Advisory Added CWE NIST CWE-798 Added CPE Configuration AND OR *cpe:2.3:o:fiberhome:hg6245d_firmware:*:*:*:*:*:*:*:* versions up to (including) rp2613 OR cpe:2.3:h:fiberhome:hg6245d:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-27165 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-27165
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
82.40 }} -1.00%
score
0.98429
percentile