Vulnerability Details : CVE-2022-21689
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.
Products affected by CVE-2022-21689
- cpe:2.3:a:onionshare:onionshare:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-21689
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-21689
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2022-21689
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2022-21689
-
https://github.com/onionshare/onionshare/releases/tag/v2.5
Release OnionShare 2.5 · onionshare/onionshare · GitHubRelease Notes;Third Party Advisory
-
https://github.com/onionshare/onionshare/security/advisories/GHSA-jh82-c5jw-pxpc
OTF-012: Denial of Service: 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 · Advisory · onionshare/Third Party Advisory
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