Out-of-Band Detection for Log4Shell | Qualys
Summary: Qualys released an out-of-band Linux script and Windows utility that perform a deep file scan to find every instance of a vulnerable Log4j library, regardless of how the Java application was coded, packaged, or deployed. Qualys says its QID detection logic assumes best practices were used to embed the library, so the deep scan is meant to complement those QIDs, and the tool is open-sourced on GitHub for non-customers as well.
What you should know: The deep scan covers the entire hard drive including archives, which Qualys describes as time-consuming and CPU-consuming, and the QID only works if the utility runs on the asset before the scanner scans for it. Any Java application may be vulnerable, including client applications, not just web servers.
Read the original at Qualys Blog ↗
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