CVE-2020-10687 HTTP Request Smuggling in Undertow

What is CVE-2020-10687?

CVE-2020-10687 is a medium-severity vulnerability in Redhat Jboss Enterprise Application Platform, published on 23 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own.

Weakness: CWE-444

Which versions are affected by CVE-2020-10687?

2 open source packages ship an affected version, including io.undertow:undertow-core. It affects 3 products.

Products include Redhat Jboss Enterprise Application Platform, Redhat Single Sign-On, Redhat Undertow.

How do I fix CVE-2020-10687?

Upgrade io.undertow:undertow-core to 2.2.0.Final or later.

Is CVE-2020-10687 being exploited?

There is no known exploitation of CVE-2020-10687 in the wild and no public exploit code.

Other vulnerabilities in Redhat Jboss Enterprise Application Platform

• CVE-2017-12149 Red Hat JBoss Application Server Remote Code Execution Exploited Critical 9.8
• CVE-2010-1428 Red Hat JBoss Information Disclosure Exploited Medium 5.9
• CVE-2010-0738 Red Hat JBoss Authentication Bypass Exploited Low 3.7
• CVE-2016-3690 Deserialization in n/a Critical 9.8
• CVE-2017-7504 Deserialization in JBoss Critical 9.8

All Redhat Jboss Enterprise Application Platform vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-10687, GHSA-p9w3-gwc2-cr49, UBUNTU-CVE-2020-10687.