Apache Commons Text RCE via default Script, DNS, URL interpolation (<= 1.9)
CVE-2022-42889 Published on October 13, 2022
Apache Commons Text prior to 1.10.0 allows RCE when applied to untrusted input due to insecure interpolation defaults
Apache Commons Text 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.text.lookup.StringLookup that performs the interpolation. Starting with version 1.5 and continuing through 1.9, 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 Text 1.10.0, which disables the problematic interpolators by default.
Products Associated with CVE-2022-42889
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Affected Versions
Apache Software Foundation Apache Commons Text:- Version unspecified, <= 1.9 is affected.
- Version 1.5 and below Apache Commons Text* is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.