Improper input validation in Onionshare
CVE-2022-21696
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 it is possible to change the username to that of another chat participant with an additional space character at the end of the name string. An adversary with access to the chat environment can use the rename feature to impersonate other participants by adding whitespace characters at the end of the username.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.007 (49.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Onionshare — versions < 2.5
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2022-21696?
- CVE-2022-21696 is a medium-severity vulnerability in Onionshare, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2022-01-18.
- How severe is CVE-2022-21696?
- Medium severity. CVSS v3 base score is 4.3 out of 10.