Vulnerability Details : 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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2020-5242
- cpe:2.3:a:openhab:openhab:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-5242
0.26%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 66 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-5242
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
7.7
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N |
1.3
|
5.8
|
GitHub, Inc. |
CWE ids for CVE-2020-5242
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: security-advisories@github.com (Secondary)
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-5242
-
https://github.com/openhab/openhab-addons/commit/4c4cb664f2e2c3866aadf117d22fb54aa8dd0031
Merge pull request from GHSA-w698-693g-23hv · openhab/openhab-addons@4c4cb66 · GitHubPatch;Third Party Advisory
-
https://github.com/openhab/openhab-addons/security/advisories/GHSA-w698-693g-23hv
Exec add-ons allow remote arbitrary command execution · Advisory · openhab/openhab-addons · GitHubThird Party Advisory
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