CVE-2022-21688
Tor-based OnionShare Denial of Service Vulnerability
Description
OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Affected versions of the desktop application were found to be vulnerable to denial of service via an undisclosed vulnerability in the QT image parsing. Roughly 20 bytes lead to 2GB memory consumption and this can be triggered multiple times. To be abused, this vulnerability requires rendering in the history tab, so some user interaction is required. An adversary with knowledge of the Onion service address in public mode or with authentication in private mode can perform a Denial of Service attack, which quickly results in out-of-memory for the server. This requires the desktop application with rendered history, therefore the impact is only elevated. This issue has been patched in version 2.5.
INFO
Published Date :
Jan. 18, 2022, 10:15 p.m.
Last Modified :
Nov. 21, 2024, 6:45 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2022-21688 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-2022-21688.
| URL | Resource |
|---|---|
| https://github.com/onionshare/onionshare/releases/tag/v2.5 | Release Notes Third Party Advisory |
| https://github.com/onionshare/onionshare/security/advisories/GHSA-x7wr-283h-5h2v | Third Party Advisory |
| https://github.com/onionshare/onionshare/releases/tag/v2.5 | Release Notes Third Party Advisory |
| https://github.com/onionshare/onionshare/security/advisories/GHSA-x7wr-283h-5h2v | 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).
test 反向辣鸡数据投放 CVE-2022-23305 工具 利用 教程 Exploit POC
cve-2020-
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-21688 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-21688 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.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/onionshare/onionshare/releases/tag/v2.5 Added Reference https://github.com/onionshare/onionshare/security/advisories/GHSA-x7wr-283h-5h2v -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jan. 25, 2022
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/onionshare/onionshare/releases/tag/v2.5 No Types Assigned https://github.com/onionshare/onionshare/releases/tag/v2.5 Release Notes, Third Party Advisory Changed Reference Type https://github.com/onionshare/onionshare/security/advisories/GHSA-x7wr-283h-5h2v No Types Assigned https://github.com/onionshare/onionshare/security/advisories/GHSA-x7wr-283h-5h2v Third Party Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:onionshare:onionshare:*:*:*:*:*:*:*:* versions up to (excluding) 2.5
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-21688 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-2022-21688
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.27 }} -0.03%
score
0.47926
percentile