http4k before 6.49.0.0 Host Header Routing Bypass via reverseProxy
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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No data.
No data.
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| Http4k | Http4k |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.344% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Http4k
Http4k http4k |
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| Vendors & Products |
Http4k
Http4k http4k |
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| Description | http4k (Maven package org.http4k:http4k-core) before 6.49.0.0, 5.42.0.0 and 4.51.0.0 uses substring (Contains) matching on the Host header by default in reverseProxy() and reverseProxyRouting() when dispatching to configured virtual hosts. If these functions are deployed as a public-facing inbound HTTP handler with two or more configured virtual hosts, a remote attacker can supply a Host header that merely contains a configured vhost name (for example Host: admin.evil.com for a vhost configured as "admin") and be routed to that vhost, bypassing routing-based authorization. The intended outbound-dispatch and test-time uses, where the Host value is set by the calling application, are not affected. | |
| Title | http4k before 6.49.0.0 Host Header Routing Bypass via reverseProxy | |
| Weaknesses | CWE-444 | |
| References |
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| Metrics |
cvssV3_1
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