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CVE-2002-1567 is an HTTP response-splitting and cross-site scripting vulnerability in Apache Tomcat 4.1.0 through 4.1.28. Tomcat reflected the unmodified requested URL in a 404 response header. A remote attacker could supply encoded newline characters to terminate the header and cause attacker-controlled script markup embedded in the request target to be interpreted as response-body content by the client.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
HTTP response splitting and cross-site scripting via 404 response headers.
Cross-site scripting flaw through unsanitized requested URLs in 404 response headers.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.