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Vulnerability of Apache Tomcat: code execution via PersistenceManager

Synthesis of the vulnerability 

An attacker can use a vulnerability via PersistenceManager of Apache Tomcat, in order to run code.
Impacted products: Tomcat, Layer7 SiteMinder, CA SSO, SiteMinder, Debian, Avamar, Fedora, ePO, Snap Creator Framework, openSUSE Leap, Oracle Communications, Oracle DB, Oracle Fusion Middleware, Oracle Identity Management, Oracle OIT, Solaris, WebLogic, RHEL, Ubuntu.
Severity of this bulletin: 3/4.
Creation date: 21/05/2020.
Revision date: 03/06/2020.
Références of this threat: CERTFR-2020-AVI-315, CERTFR-2020-AVI-417, cpuapr2021, cpuoct2020, CVE-2020-9484, DLA-2209-1, DLA-2217-1, DLA-2279-1, DSA-2020-161, DSA-4627-1, ESDSA16092, FEDORA-2020-ce396e7d5c, FEDORA-2020-d9169235a8, NTAP-20200528-0005, openSUSE-SU-2020:0711-1, RHSA-2020:2529-01, RHSA-2020:2530-01, SB10332, USN-4448-1, USN-4596-1, VIGILANCE-VUL-32313.

Description of the vulnerability 

An attacker can use a vulnerability via PersistenceManager of Apache Tomcat, in order to run code.
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This vulnerability note impacts software or systems such as Tomcat, Layer7 SiteMinder, CA SSO, SiteMinder, Debian, Avamar, Fedora, ePO, Snap Creator Framework, openSUSE Leap, Oracle Communications, Oracle DB, Oracle Fusion Middleware, Oracle Identity Management, Oracle OIT, Solaris, WebLogic, RHEL, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity vulnerability is important.

The trust level is of type confirmed by the editor, with an origin of user account.

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this computer threat note.

Solutions for this threat 

Apache Tomcat: version 9.0.35.
The version 9.0.35 is fixed:
  https://tomcat.apache.org/whichversion.html

Apache Tomcat: version 8.5.55.
The version 8.5.55 is fixed:
  https://tomcat.apache.org/whichversion.html

Apache Tomcat: version 7.0.104.
The version 7.0.104 is fixed:
  https://tomcat.apache.org/whichversion.html

Apache Tomcat: workaround for PersistenceManager.
A workaround is indicated in the information source.

Debian 10: new tomcat9 packages.
New packages are available:
  Debian 10: tomcat9 9.0.31-1~deb10u2

Debian 8: new tomcat7 packages.
New packages are available:
  Debian 8: tomcat7 7.0.56-3+really7.0.100-1+deb8u1

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 8.5.54-0+deb9u2

Dell EMC Avamar Server: fixed versions for Apache Tomcat.
Fixed versions are indicated in information sources.

Fedora: new tomcat packages.
New packages are available:
  Fedora 31: tomcat 9.0.36-1.fc31
  Fedora 32: tomcat 9.0.36-1.fc32

McAfee ePolicy Orchestrator: versions 5.9.1 EPO-919400 and 5.10.0 Update 9.
Versions 5.9.1 EPO-919400 and 5.10.0 Update 9 are fixed:
  http://www.mcafee.com/us/downloads/downloads.aspx

openSUSE Leap 15.1: new tomcat packages.
New packages are available:
  openSUSE Leap 15.1: tomcat 9.0.35-lp151.3.18.1

Oracle Communications: CPU of October 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2714788.1
  https://support.oracle.com/rs?type=doc&id=2713777.1
  https://support.oracle.com/rs?type=doc&id=2714789.1
  https://support.oracle.com/rs?type=doc&id=2714787.1
  https://support.oracle.com/rs?type=doc&id=2714763.1
  https://support.oracle.com/rs?type=doc&id=2714792.1
  https://support.oracle.com/rs?type=doc&id=2713779.1
  https://support.oracle.com/rs?type=doc&id=2713303.1
  https://support.oracle.com/rs?type=doc&id=2714790.1
  https://support.oracle.com/rs?type=doc&id=2712893.1
  https://support.oracle.com/rs?type=doc&id=2714764.1
  https://support.oracle.com/rs?type=doc&id=2714796.1
  https://support.oracle.com/rs?type=doc&id=2714988.1
  https://support.oracle.com/rs?type=doc&id=2714791.1

Oracle Database: CPU of April 2021.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2749094.1

Oracle Database: CPU of October 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2694898.1

Oracle Fusion Middleware: CPU of April 2021.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2749094.1

Oracle Fusion Middleware: CPU of October 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2694898.1

Oracle Solaris: patch for third party software of April 2020 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

Oracle Solaris: patch for third party software of April 2021 v1.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 6.10: new tomcat6 packages.
New packages are available:
  RHEL 6.10: tomcat6 6.0.24-115.el6_10

RHEL 7.8: new tomcat packages.
New packages are available:
  RHEL 7.8: tomcat 7.0.76-12.el7_8

Snap Creator Framework: solution for Tomcat.
Now, the editor indicates that Snap Creator Framework is not vulnerable.

Symantec SiteMinder: version 12.8.04.
The version 12.8.04 is fixed:
  https://support.broadcom.com/external/content/release-announcements/CA-Single-Sign-On-Hotfix-Cumulative-Release-Index/6544#SMWAM

Ubuntu 16.04: new tomcat8 packages.
New packages are available:
  Ubuntu 16.04 LTS: tomcat8 8.0.32-1ubuntu1.13

Ubuntu 20.04: new tomcat9 packages.
New packages are available:
  Ubuntu 20.04 LTS: tomcat9 9.0.31-1ubuntu0.1
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