CVE-2019-17569: Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
(updated )
The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.
References
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html
- github.com/advisories/GHSA-767j-jfh2-jvrc
- lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78@%3Ccommits.tomee.apache.org%3E
- lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3E
- lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743@%3Ccommits.tomee.apache.org%3E
- lists.debian.org/debian-lts-announce/2020/03/msg00006.html
- nvd.nist.gov/vuln/detail/CVE-2019-17569
- security.netapp.com/advisory/ntap-20200327-0005/
- www.debian.org/security/2020/dsa-4673
- www.debian.org/security/2020/dsa-4680
- www.oracle.com/security-alerts/cpujan2021.html
- www.oracle.com/security-alerts/cpujul2020.html
- www.oracle.com/security-alerts/cpuoct2020.html
Code Behaviors & Features
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