Auth bypass in Openhab
CVE-2020-5242
openHAB before 2.5.2 allow a remote attacker to use REST calls to install the EXEC binding or EXEC transformation service and execute arbitrary commands on the system with the privileges of the user running openHAB. Starting with version 2.5.2 all commands need to be whitelisted in a local file which cannot be changed via REST calls.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.020 (79.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Openhab
- Openhab Openhab-Addons — versions < 2.5.2
Weakness classification (CWE)
References
- github.com/openhab/openhab-addons/security/advisories/GHSA-w698-693g-23hv (Third Party Advisory)
- github.com/openhab/openhab-addons/commit/4c4cb664f2e2c3866aadf117d22fb54aa8dd00… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-5242?
- CVE-2020-5242 is a high-severity vulnerability in Openhab, classified under Improper Access Control. CVSS score: 7.7/10. Published 2020-02-20.
- How severe is CVE-2020-5242?
- High severity. CVSS v3 base score is 7.7 out of 10.