Path Traversal in Keybase
CVE-2021-34422
The Keybase Client for Windows before version 5.7.0 contains a path traversal vulnerability when checking the name of a file uploaded to a team folder. A malicious user could upload a file to a shared folder with a specially crafted file name which could allow a user to execute an application which was not intended on their host machine. If a malicious user leveraged this issue with the public folder sharing feature of the Keybase client, this could lead to remote code execution.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.013 (68.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Keybase
- Zoom Video Communications Inc Keybase Client For Windows — versions unspecified
Weakness classification (CWE)
References
- security@zoom.us (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34422?
- CVE-2021-34422 is a high-severity vulnerability in Keybase, classified under Path Traversal. CVSS score: 7.2/10. Published 2021-11-11.
- How severe is CVE-2021-34422?
- High severity. CVSS v3 base score is 7.2 out of 10.