Version Disclosure (Undertow Web Server)
Summary#
Invicti identified a version disclosure (Undertow Web Server) in the target web server's HTTP response. Undertow is a flexible performant web server written in java, providing both blocking and non-blocking API's based on NIO.
This information can help an attacker gain a greater understanding of the systems in use and potentially develop further attacks targeted at the specific version of Undertow Web Server.
Impact#
An attacker might use the disclosed information to harvest specific security vulnerabilities for the version identified.
Remediation#
Configure your web server to prevent information leakage from the
X-Powered-By header of its HTTP response.Classifications#
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