vulnerability

Apache Commons Text: CVE-2022-42889: Arbitrary Code Execution from Variable Interpolation

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Oct 13, 2022
Added
Oct 18, 2022
Modified
Jan 9, 2024

Description


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.

Solution

apache-commons-text-cve-2022-42889
Title
Rapid7 Labs

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