CVE-2020-1953
Remote code execution in Apache Commons Configuration
10.0
CRITICAL
CVSS 3.1
EPSS 2.7%
Description
Apache Commons Configuration uses a third-party library to parse YAML files which by default allows the instantiation of classes if the YAML includes special statements. Apache Commons Configuration versions 2.2, 2.3, 2.4, 2.5, 2.6 did not change the default settings of this library. So if a YAML file was loaded from an untrusted source, it could therefore load and execute code out of the control of the host application.
How to fix CVE-2020-1953
To remediate CVE-2020-1953, upgrade the affected package to a fixed version below.
- —upgrade to 2.7-1 or later
- —upgrade to 2.7 or later
Is CVE-2020-1953 being exploited?
Low — EPSS is 2.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.7-1
- >= 2.2, < 2.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
References (7)
- ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-1953
- ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-1953
- WEBgithub.com/apache/commons-configuration/commit/add7375cf37fd316d4838c6c56b054fc293b4641
- WEBlists.apache.org/thread.html/d0e00f2e147a9e9b13a6829133092f349b2882bf6860397368a52600@%3Cannounce.tomcat.apache.org%3E