CVE-2022-21689

Denial of Service in Onionshare

Published: Jan 18, 2022Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-400

7.5HIGH

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. In affected versions the receive mode limits concurrent uploads to 100 per second and blocks other uploads in the same second, which can be triggered by a simple script. An adversary with access to the receive mode can block file upload for others. There is no way to block this attack in public mode due to the anonymity properties of the tor network.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:HAvailability

High

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Weaknesses

CWE-400 NVD-CWE-Other

Affected Products

onionshare

oss-projectaka onionshare tool

onionshareMixed

Consumer Software / file-utility

PyPI

package-ecosystem

onionshare-cli

OSS Libraries

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Impact

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References

https://github.com/onionshare/onionshare/releases/tag/v2.5

github.com

https://github.com/onionshare/onionshare/security/advisories/GHSA-jh82-c5jw-pxpc

github.com

https://nvd.nist.gov/vuln/detail/CVE-2022-21689

nvd.nist.gov

and 2 more references View all →

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