Apache Software Foundation - RCE (CVE-2022-42889)
387Exploiting IPs reported
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.
CrowdSec analysis
CVE-2022-42889 is a critical vulnerability in Apache Commons Text that can lead to remote code execution or unintended interaction with remote servers through variable interpolation functions. If user-supplied data is processed by the affected interpolation mechanism, attackers can trigger execution of arbitrary code or external resource access.
CrowdSec has been tracking this vulnerability and its exploits since 24th of October 2022.
Data from the CrowdSec community indicates that exploitation of CVE-2022-42889 is highly selective and intelligence-driven. Threat actors use advanced reconnaissance and carefully choose their targets, often as part of sophisticated campaigns or advanced persistent threat operations. Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2022-42889 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2022-42889 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.
Detection typically relies on identifying suspicious use of interpolation patterns within application input or configuration, especially where user-controlled data is present.
Exploitation
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Common Weakness Enumeration (CWE)
Protection
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Blocklist
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