Path Traversal in Home-Assistant
CVE-2021-3152
Home Assistant before 2021.1.3 does not have a protection layer that can help to prevent directory-traversal attacks against custom integrations. NOTE: the vendor's perspective is that the vulnerability itself is in custom integrations written by third parties, not in Home Assistant; however, Home Assistant does have a security update that is worthwhile in addressing this situation
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.023 (82.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.023 · change: +0.001
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.home-assistant.io/blog/2021/01/14/security-bulletin/ (Vendor Advisory)
- www.home-assistant.io/blog/2021/01/22/security-disclosure/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-3152?
- CVE-2021-3152 is a medium-severity vulnerability in Home-Assistant, classified under Path Traversal. CVSS score: 5.3/10. Published 2021-01-26.
- How severe is CVE-2021-3152?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-3152 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.