Path Traversal in Microsoft Windows
CVE-2020-8144
The UniFi Video Server v3.9.3 and prior (for Windows 7/8/10 x64) web interface Firmware Update functionality, under certain circumstances, does not validate firmware download destinations to ensure they are within the intended destination directory tree. It accepts a request with a URL to firmware update information. If the version field contains ..\ character sequences, the destination file path to save the firmware can be manipulated to be outside the intended destination directory tree. Fixed in UniFi Video Controller v3.10.3 and newer.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.007 (51.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Microsoft Windows
- Ui Unifi_video
- N/a Unifi Video Controller (For Windows 7/8/10 X64) — versions v3.9.3 and prior are affected, Fixed in v3.10.3 and newer
Weakness classification (CWE)
References
- support@hackerone.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-8144?
- CVE-2020-8144 is a high-severity vulnerability in Microsoft Windows, classified under Path Traversal. CVSS score: 8.4/10. Published 2020-04-01.
- How severe is CVE-2020-8144?
- High severity. CVSS v3 base score is 8.4 out of 10.