CVE-2021-26088
Apache FSSO UDP Login Notification Packet Authentication Bypass
Description
An improper authentication vulnerability in FSSO Collector version 5.0.295 and below may allow an unauthenticated user to bypass a FSSO firewall policy and access the protected network via sending specifically crafted UDP login notification packets.
INFO
Published Date :
July 12, 2021, 2:15 p.m.
Last Modified :
Aug. 2, 2021, 5:48 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-26088 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-2021-26088.
| URL | Resource |
|---|---|
| https://fortiguard.com/advisory/FG-IR-20-191 | Vendor 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).
PoC for CVE-2021-26088 written in PowerShell
PowerShell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-26088 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-26088 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]
Aug. 02, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://fortiguard.com/advisory/FG-IR-20-191 No Types Assigned https://fortiguard.com/advisory/FG-IR-20-191 Vendor Advisory Added CWE NIST CWE-287 Added CPE Configuration OR *cpe:2.3:a:fortinet:fortinet_single_sign-on:*:*:*:*:*:*:*:* versions up to (excluding) 6.4.6 *cpe:2.3:a:fortinet:fortinet_single_sign-on:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.0.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-26088 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-2021-26088
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.01%
score
0.27922
percentile