PT-2022-3497 · Apache+2 · Apache Commons Configuration+2
Matt Juntunen
·
Published
2022-07-06
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Updated
2025-09-29
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CVE-2022-33980
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Apache Commons Configuration versions 2.4 through 2.7
Description
The issue is related to the variable interpolation feature in Apache Commons Configuration, which allows 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. The affected versions include default Lookup instances that could result in arbitrary code execution or contact with remote servers, specifically the "script", "dns", and "url" lookups. These lookups can execute expressions using the JVM script execution engine, resolve DNS records, and 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.
Recommendations
Upgrade to Apache Commons Configuration 2.8.0, which disables the problematic interpolators by default.
As a temporary workaround, consider disabling the "script", "dns", and "url" lookups to minimize the risk of exploitation.
Restrict access to untrusted configuration values to prevent potential remote code execution or unintentional contact with remote servers.
Exploit
Fix
Code Injection
Special Elements Injection
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Related Identifiers
Affected Products
Apache Commons Configuration
Red Os
Rocky Linux