Auth bypass in Qbittorrent
CVE-2017-12778
The UI Lock feature in qBittorrent version 3.3.15 is vulnerable to Authentication Bypass, which allows Attack to gain unauthorized access to qBittorrent functions by tampering the affected flag value of the config file at the C:\Users\<username>\Roaming\qBittorrent pathname. The attacker must change the value of the "locked" attribute to "false" within the "Locking" stanza. NOTE: This is an intended behavior. See https://github.com/qbittorrent/qBittorrent/wiki/I-forgot-my-UI-lock-password
Vulnerability class: Broken Authentication
EPSS: 0.005 (38.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Qbittorrent — versions 3.3.15
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-12778?
- CVE-2017-12778 is a high-severity vulnerability in Qbittorrent, classified under Improper Authentication. CVSS score: 7.1/10. Published 2019-05-09.
- How severe is CVE-2017-12778?
- High severity. CVSS v3 base score is 7.1 out of 10.