Description
Citrix ShareFile before 19.23 allows a downgrade from two-factor authentication to one-factor authentication. An attacker with access to the offline victim's otp physical token or virtual app (like google authenticator) is able to bypass the first authentication phase (username/password mechanism) and log-in using username/otp combination only (phase 2 of 2FA).
Metrics
CVSS 3.0 5.9/10
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://www.sk-it.com/en/cve.htmlExploit, Third Party Advisory
- http://www.sk-it.com/en/cve.htmlExploit, Third Party Advisory
Timeline
- Published
- May 13, 2019
- Last modified
- Jun 17, 2026
- NVD status
- Modified