HTTP Request Header Injection Affecting io.micronaut:micronaut-http-client Open this link in a new tab package, versions [,1.2.11) [1.3.0,1.3.2)
Exploit Maturity
Proof of concept
Attack Complexity
High
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snyk-id
SNYK-JAVA-IOMICRONAUT-561342
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published
26 Mar 2020
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disclosed
26 Mar 2020
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credit
Jonathan Leitschuh
Introduced: 26 Mar 2020
CVE-2020-7611 Open this link in a new tabHow to fix?
Upgrade io.micronaut:micronaut-http-client
to version 1.2.11, 1.3.2 or higher.
Overview
io.micronaut:micronaut-http-client is a modern, JVM-based, full stack microservices framework designed for building modular, easily testable microservice applications.
Affected versions of this package are vulnerable to HTTP Request Header Injection due to not validating request headers passed to the client.
PoC by Jonathan Leitschuh
@Controller("/hello")
public class HelloController {
@Inject
@Client("/")
RxHttpClient client;
@Get("/external-exploit")
@Produces(MediaType.TEXT_PLAIN)
public String externalExploit(@QueryValue("header-value") String headerValue) {
return client.toBlocking().retrieve(
HttpRequest.GET("/hello")
.header("Test", headerValue)
);
}
}