CVE-2022-33980

Description

Apache Commons Configuration performs variable interpolation, allowing properties to be dynamically evaluated and expanded. The standard format for interpolation is "${prefix:name}", where "prefix" is used to locate an instance of org.apache.commons.configuration2.interpol.Lookup that performs the interpolation. Starting with version 2.4 and continuing through 2.7, the set of default Lookup instances included interpolators that could result in arbitrary code execution or contact with remote servers. These lookups are: - "script" - execute expressions using the JVM script execution engine (javax.script) - "dns" - resolve dns records - "url" - load values from urls, including from remote servers Applications using the interpolation defaults in the affected versions may be vulnerable to remote code execution or unintentional contact with remote servers if untrusted configuration values are used. Users are recommended to upgrade to Apache Commons Configuration 2.8.0, which disables the problematic interpolators by default.

How to fix CVE-2022-33980

To remediate CVE-2022-33980, upgrade the affected package to a fixed version below.

• —upgrade to 2.8.0-1~deb11u1 or later
• —upgrade to 2.8.0-1~deb11u1 or later
• —upgrade to 2.8.0 or later

Is CVE-2022-33980 being exploited?

Likely — EPSS is 86.7%, placing CVE-2022-33980 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.

Affected packages (3)

• from 0, < 2.8.0-1~deb11u1
• from 0, < 2.8.0-1~deb11u1
• >= 2.4, < 2.8.0

CVSS scores

References (11)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2022-33980
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2022-33980
• PATCHgithub.com/apache/commons-configuration
• WEBcommons.apache.org/proper/commons-configuration/changes-report.html#a2.8.0