Bug 1785711 (CVE-2019-17563) - CVE-2019-17563 tomcat: session fixation when using FORM authentication
Summary: CVE-2019-17563 tomcat: session fixation when using FORM authentication
Keywords:
Status: NEW
Alias: CVE-2019-17563
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1785712 1801782 1801784 1801845 1785713
Blocks: 1785717
TreeView+ depends on / blocked
 
Reported: 2019-12-20 18:30 UTC by Guilherme de Almeida Suckevicz
Modified: 2020-02-12 12:23 UTC (History)
41 users (show)

Fixed In Version: tomcat 7.0.99, tomcat 8.5.50, tomcat 9.0.30
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Description Guilherme de Almeida Suckevicz 2019-12-20 18:30:26 UTC
When using FORM authentication 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.

Reference:
https://tomcat.apache.org/security-7.html
https://tomcat.apache.org/security-8.html
http://tomcat.apache.org/security-9.html

Upstream commits:
https://github.com/apache/tomcat/commit/ab72a10
https://github.com/apache/tomcat/commit/e19a202
https://github.com/apache/tomcat/commit/1ecba14

Comment 1 Guilherme de Almeida Suckevicz 2019-12-20 18:30:52 UTC
Created tomcat tracking bugs for this issue:

Affects: epel-all [bug 1785712]
Affects: fedora-all [bug 1785713]


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