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Vulnerability of Apache Tomcat: privilege escalation via FORM authentication session fixation

Synthesis of the vulnerability 

An attacker can bypass restrictions via FORM authentication session fixation of Apache Tomcat, in order to escalate his privileges.
Vulnerable products: Tomcat, Debian, BIG-IP Hardware, TMOS, HP-UX, MySQL Community, MySQL Enterprise, openSUSE Leap, Oracle DB, Solaris, Percona Server, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this weakness: 1/4.
Creation date: 19/12/2019.
Références of this bulletin: CERTFR-2019-AVI-643, cpuapr2020, CVE-2019-17563, DLA-2077-1, DLA-2209-1, DSA-4596-1, DSA-4680-1, HPESBUX04015, K24551552, openSUSE-SU-2020:0038-1, RHSA-2020:4004-01, SUSE-SU-2020:0029-1, SUSE-SU-2020:0226-1, SUSE-SU-2020:0632-1, USN-4251-1, VIGILANCE-VUL-31188.

Description of the vulnerability 

An attacker can bypass restrictions via FORM authentication session fixation of Apache Tomcat, in order to escalate his privileges.
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This security bulletin impacts software or systems such as Tomcat, Debian, BIG-IP Hardware, TMOS, HP-UX, MySQL Community, MySQL Enterprise, openSUSE Leap, Oracle DB, Solaris, Percona Server, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity announce is low.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this vulnerability alert.

Solutions for this threat 

Apache Tomcat: version 9.0.30.
The version 9.0.30 is fixed:
  https://tomcat.apache.org/whichversion.html

Apache Tomcat: version 8.5.50.
The version 8.5.50 is fixed:
  https://tomcat.apache.org/whichversion.html

Apache Tomcat: version 7.0.99.
The version 7.0.99 is fixed:
  https://tomcat.apache.org/whichversion.html

Debian 10: new tomcat9 packages.
New packages are available:
  Debian 10: tomcat9 9.0.31-1~deb10u1

Debian 8: new tomcat7 packages.
New packages are available:
  Debian 8: tomcat7 7.0.56-3+really7.0.99-1

Debian 8: new tomcat8 packages.
New packages are available:
  Debian 8: tomcat8 8.0.14-1+deb8u17

Debian 9: new tomcat8 packages.
New packages are available:
  Debian 9: tomcat8 8.5.50-0+deb9u1, tomcat-native 1.2.21-1~deb9u1

HP-UX Tomcat: version 7.0.104.01.
The version 7.0.104.01 is fixed:
  https://myenterpriselicense.hpe.com/cwp-ui/free-software/HPUXWSATW509

openSUSE Leap 15.1: new tomcat packages.
New packages are available:
  openSUSE Leap 15.1: tomcat 9.0.30-lp151.3.6.1

Oracle Database: CPU of April 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2633852.1

Oracle MySQL: version 5.6.48.
The version 5.6.48 is fixed:
  https://support.oracle.com/rs?type=doc&id=2648128.1
  https://www.mysql.com/fr/downloads/
  https://dev.mysql.com/downloads/mysql/

Oracle MySQL: version 5.7.30.
The version 5.7.30 is fixed:
  https://support.oracle.com/rs?type=doc&id=2648128.1
  https://www.mysql.com/fr/downloads/
  https://dev.mysql.com/downloads/mysql/

Oracle MySQL: version 8.0.20.
The version 8.0.20 is fixed:
  https://support.oracle.com/rs?type=doc&id=2648128.1
  https://www.mysql.com/fr/downloads/
  https://dev.mysql.com/downloads/mysql/

Oracle Solaris: patch for third party software of Januray 2020 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

Percona Server: version 5.6.48-88.0.
The version 5.6.48-88.0 is fixed.

RHEL 7.8: new tomcat packages.
New packages are available:
  RHEL 7.0-7.8: tomcat 7.0.76-15.el7

SUSE LE 12: new tomcat packages.
New packages are available:
  SUSE LE 12 SP5: tomcat 9.0.31-3.25.1
  SUSE LE 12 SP4: tomcat 9.0.31-3.25.1

SUSE LE 15 RTM: new tomcat packages.
New packages are available:
  SUSE LE 15 RTM: tomcat 9.0.30-3.34.1

SUSE LE 15 SP1: new tomcat packages.
New packages are available:
  SUSE LE 15 SP1: tomcat 9.0.30-4.10.1

Ubuntu 16.04: new tomcat8 packages.
New packages are available:
  Ubuntu 16.04 LTS: tomcat8 8.0.32-1ubuntu1.11
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