CVE-2022-21689
Denial of Service in Onionshare
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.5EPSS 1.4%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
18 Jan 2022Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
onionshare · onionshareWant to know if your infrastructure is exposed to this?
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