Security Bypass Affecting io.undertow:undertow-servlet package, versions [,2.1.0.Final)
Attack Complexity
High
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snyk-id
SNYK-JAVA-IOUNDERTOW-567266
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published
21 Apr 2020
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disclosed
21 Apr 2020
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credit
Fedorov Oleksii, Keitaro Yamazaki, Shiga Ryota (LINE Corporation)
Introduced: 21 Apr 2020
CVE-2020-1757 Open this link in a new tabHow to fix?
Upgrade io.undertow:undertow-servlet to version 2.1.0.Final or higher.
Overview
io.undertow:undertow-servlet is a Servlet 4.0 implementation for Undertow
Affected versions of this package are vulnerable to Security Bypass. The servletPath is normalized by the Servlet container, and truncated after the semicolon, leading to a partial servletPath. Leading to a full path /api/public/aa/secret and servletPath /api/public/aa leading to application mapping /secret. This can lead to a security bypass depending on where and how URL-based security is applied.