Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2019-17563

Session Fixation

Published: Dec 23, 2019 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
5.1 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
7.5 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2019-17563
CWEhttps://cwe.mitre.org/data/definitions/384.html

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.

Weakness

Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.

Affected Software

NameVendorStart VersionEnd Version
TomcatApache7.0.0 (including)7.0.98 (including)
TomcatApache8.5.0 (including)8.5.49 (including)
TomcatApache9.0.0 (including)9.0.29 (including)
Red Hat Enterprise Linux 7RedHattomcat-0:7.0.76-15.el7*
Red Hat Enterprise Linux 7.6 Extended Update SupportRedHattomcat-0:7.0.76-11.el7_6*
Red Hat Enterprise Linux 7.7 Extended Update SupportRedHattomcat-0:7.0.76-12.el7_7*
Red Hat JBoss Web Server 3.1RedHattomcat*
Red Hat JBoss Web Server 3 for RHEL 6RedHattomcat7-0:7.0.70-38.ep7.el6*
Red Hat JBoss Web Server 3 for RHEL 6RedHattomcat8-0:8.0.36-42.ep7.el6*
Red Hat JBoss Web Server 3 for RHEL 6RedHattomcat-native-0:1.2.23-21.redhat_21.ep7.el6*
Red Hat JBoss Web Server 3 for RHEL 7RedHattomcat7-0:7.0.70-38.ep7.el7*
Red Hat JBoss Web Server 3 for RHEL 7RedHattomcat8-0:8.0.36-42.ep7.el7*
Red Hat JBoss Web Server 3 for RHEL 7RedHattomcat-native-0:1.2.23-21.redhat_21.ep7.el7*
Red Hat JBoss Web Server 5.3 on RHEL 6RedHatjws5-tomcat-0:9.0.30-3.redhat_4.1.el6jws*
Red Hat JBoss Web Server 5.3 on RHEL 6RedHatjws5-tomcat-native-0:1.2.23-4.redhat_4.el6jws*
Red Hat JBoss Web Server 5.3 on RHEL 7RedHatjws5-tomcat-0:9.0.30-3.redhat_4.1.el7jws*
Red Hat JBoss Web Server 5.3 on RHEL 7RedHatjws5-tomcat-native-0:1.2.23-4.redhat_4.el7jws*
Red Hat JBoss Web Server 5.3 on RHEL 8RedHatjws5-tomcat-0:9.0.30-3.redhat_4.1.el8jws*
Red Hat JBoss Web Server 5.3 on RHEL 8RedHatjws5-tomcat-native-0:1.2.23-4.redhat_4.el8jws*
Red Hat JBoss Web Server (JWS) 5.3RedHattomcat*
Tomcat7Ubuntubionic*
Tomcat7Ubuntuesm-apps/bionic*
Tomcat7Ubuntuesm-apps/xenial*
Tomcat7Ubuntuesm-infra-legacy/trusty*
Tomcat7Ubuntutrusty*
Tomcat7Ubuntutrusty/esm*
Tomcat7Ubuntuupstream*
Tomcat7Ubuntuxenial*
Tomcat8Ubuntubionic*
Tomcat8Ubuntuesm-apps/bionic*
Tomcat8Ubuntuesm-infra/xenial*
Tomcat8Ubuntutrusty*
Tomcat8Ubuntuupstream*
Tomcat8Ubuntuxenial*
Tomcat9Ubuntubionic*
Tomcat9Ubuntudisco*
Tomcat9Ubuntueoan*
Tomcat9Ubuntuesm-apps/bionic*
Tomcat9Ubuntutrusty*
Tomcat9Ubuntuupstream*

Extended Description

Such a scenario is commonly observed when:

In the generic exploit of session fixation vulnerabilities, an attacker creates a new session on a web application and records the associated session identifier. The attacker then causes the victim to associate, and possibly authenticate, against the server using that session identifier, giving the attacker access to the user’s account through the active session.

Potential Mitigations

References

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