7.5
HIGH
CVE-2022-25304
OPC UA/Async UA Denial of Service Denial of Service
Description

All versions of package opcua; all versions of package asyncua are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.

INFO

Published Date :

Aug. 23, 2022, 5:15 a.m.

Last Modified :

Sept. 6, 2022, 5:48 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2022-25304 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2022-25304 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Freeopcua opcua-asyncio
1 Asyncua_project asyncua
1 Opcua_project opcua
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-2022-25304.

URL Resource
https://github.com/FreeOpcUa/python-opcua/issues/1466 Issue Tracking Third Party Advisory
https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-2988731 Third Party Advisory
https://security.snyk.io/vuln/SNYK-PYTHON-OPCUA-2988730 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).

opcua-exploit-framework-main

Python Shell

Updated: 2 days, 3 hours ago
0 stars 0 fork 0 watcher
Born at : Nov. 22, 2024, 3:37 a.m. This repo has been linked 24 different CVEs too.

Claroty opc ua exploit framework add KOR comment

Python Shell

Updated: 1 month, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : Sept. 24, 2024, 4:19 p.m. This repo has been linked 24 different CVEs too.

Advanced OPC-UA framework for vulnerability research & exploitation

Python Shell

Updated: 2 months, 2 weeks ago
40 stars 8 fork 8 watcher
Born at : June 7, 2023, 1:15 p.m. This repo has been linked 24 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-25304 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-25304 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
  • Reanalysis by [email protected]

    Sep. 06, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:opcua-asyncio_project:opcua-asyncio:*:*:*:*:*:python:*:* OR *cpe:2.3:a:asyncua_project:asyncua:*:*:*:*:*:python:*:* *cpe:2.3:a:opcua_project:opcua:*:*:*:*:*:python:*:*
  • Initial Analysis by [email protected]

    Aug. 25, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/FreeOpcUa/python-opcua/issues/1466 No Types Assigned https://github.com/FreeOpcUa/python-opcua/issues/1466 Issue Tracking, Third Party Advisory
    Changed Reference Type https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-2988731 No Types Assigned https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-2988731 Third Party Advisory
    Changed Reference Type https://security.snyk.io/vuln/SNYK-PYTHON-OPCUA-2988730 No Types Assigned https://security.snyk.io/vuln/SNYK-PYTHON-OPCUA-2988730 Third Party Advisory
    Added CWE NIST CWE-770
    Added CPE Configuration OR *cpe:2.3:a:opcua-asyncio_project:opcua-asyncio:*:*:*:*:*:python:*:*
  • CVE Modified by [email protected]

    Aug. 23, 2022

    Action Type Old Value New Value
    Changed Description All versions of package opcua; all versions of package asyncua are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk. All versions of package opcua; all versions of package asyncua are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-25304 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.01%

score

0.45830

percentile

CVSS31 - Vulnerability Scoring System
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