{"id":"CVE-2019-17563","published":"2019-12-23T16:39:01Z","modified":"2026-10-08T21:03:21Z","title":"When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a…","vendor":"Apache","product":"Apache Tomcat","tier":"tail","description":{"text":"When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.","provenance":"source","from":"CVE.org"},"cvss":null,"epss":{"score":0.10687,"percentile":0.95793,"provenance":"source"},"cwes":[],"references":[{"url":"https://www.debian.org/security/2019/dsa-4596","tags":["vendor-advisory","x_refsource_DEBIAN"]},{"url":"https://seclists.org/bugtraq/2019/Dec/43","tags":["mailing-list","x_refsource_BUGTRAQ"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00013.html","tags":["vendor-advisory","x_refsource_SUSE"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/01/msg00024.html","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://usn.ubuntu.com/4251-1/","tags":["vendor-advisory","x_refsource_UBUNTU"]},{"url":"https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://security.gentoo.org/glsa/202003-43","tags":["vendor-advisory","x_refsource_GENTOO"]},{"url":"https://www.debian.org/security/2020/dsa-4680","tags":["vendor-advisory","x_refsource_DEBIAN"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/05/msg00026.html","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","tags":["x_refsource_MISC"]},{"url":"https://lists.apache.org/thread.html/reb9a66f176df29b9a832caa95ebd9ffa3284e8f4922ec4fa3ad8eb2e%40%3Cissues.cxf.apache.org%3E","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","tags":["x_refsource_MISC"]},{"url":"https://lists.apache.org/thread.html/8b4c1db8300117b28a0f3f743c0b9e3f964687a690cdf9662a884bbd%40%3Cannounce.tomcat.apache.org%3E","tags":["x_refsource_CONFIRM"]},{"url":"https://security.netapp.com/advisory/ntap-20200107-0001/","tags":["x_refsource_CONFIRM"]},{"url":"https://www.oracle.com/security-alerts/cpujan2021.html","tags":["x_refsource_MISC"]}],"priority":{"score":19.2,"factors":[{"name":"EPSS percentile","points":19.16}]},"vendorSlug":"apache","affectedVersions":[{"vendor":"Apache Software Foundation","product":"Apache Tomcat","versions":["9.0.0.M1 to 9.0.29","8.5.0 to 8.5.49","7.0.0 to 7.0.98"]}],"affected":[{"ecosystem":"Maven","package":"org.apache.tomcat.embed:tomcat-embed-core","vulnerableRanges":["<7.0.99",">=8.0.0, <8.5.50",">=9.0.0, <9.0.30"],"patched":["7.0.99","8.5.50","9.0.30"],"from":["GHSA-9xcj-c8cr-8c3c"],"provenance":"source"}],"euvd":{"id":"EUVD-2019-0787","exploited":false,"provenance":"source"},"lineage":{"packageHistory":[{"cve":"CVE-2019-0221","published":"2019-05-28","fixed":"9.0.17","kev":false,"link":{"from":"CVE-2019-0221","to":"CVE-2019-17563","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"7.0.94","toFixed":"7.0.99","daysApart":209}]}},{"cve":"CVE-2019-0232","published":"2019-04-15","fixed":"9.0.17","kev":false},{"cve":"CVE-2019-10072","published":"2019-06-21","fixed":"9.0.20","kev":false},{"cve":"CVE-2019-12418","published":"2019-12-23","fixed":"9.0.29","kev":false,"link":{"from":"CVE-2019-12418","to":"CVE-2019-17563","relation":"successor","confidence":"low","kind":"sequence","orderedBy":"description","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"8.5.49","toFixed":"8.5.50","daysApart":0},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"9.0.29","toFixed":"9.0.30","daysApart":0}]}},{"cve":"CVE-2019-17563","published":"2019-12-23","fixed":"9.0.30","kev":false},{"cve":"CVE-2019-17569","published":"2020-02-24","fixed":"9.0.31","kev":false,"link":{"from":"CVE-2019-17563","to":"CVE-2019-17569","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"8.5.50","toFixed":"8.5.51","daysApart":63},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"9.0.30","toFixed":"9.0.31","daysApart":63}]}},{"cve":"CVE-2020-1935","published":"2020-02-24","fixed":"9.0.31","kev":false,"link":{"from":"CVE-2019-17563","to":"CVE-2020-1935","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"8.5.50","toFixed":"8.5.51","daysApart":63},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"9.0.30","toFixed":"9.0.31","daysApart":63}]}},{"cve":"CVE-2020-1938","published":"2020-02-24","fixed":"9.0.31","kev":true,"link":{"from":"CVE-2019-17563","to":"CVE-2020-1938","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"8.5.50","toFixed":"8.5.51","daysApart":63},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"9.0.30","toFixed":"9.0.31","daysApart":63}]}}],"package":"Maven:org.apache.tomcat.embed:tomcat-embed-core"}}