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AUSCERT External Security Bulletin Redistribution
ESB-2023.3998
APSB23-41 : Security update available for Adobe ColdFusion
17 July 2023
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AusCERT Security Bulletin Summary
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Product: Adobe ColdFusion
Publisher: Adobe
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2023-38203 CVE-2023-29319 CVE-2023-29318
CVE-2023-29317 CVE-2023-29316 CVE-2023-29315
CVE-2023-29314 CVE-2023-29313 CVE-2023-29312
CVE-2023-29311 CVE-2023-29310 CVE-2023-29309
CVE-2023-29308
Original Bulletin:
https://helpx.adobe.com/security/products/coldfusion/apsb23-41.html
Comment: CVSS (Max): 9.8 CVE-2023-38203 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: Adobe
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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Security updates available for Adobe ColdFusion | APSB23-41
Bulletin ID Date Published Priority
APSB23-41 July 14, 2023 1
Summary
Adobe has released security updates for ColdFusion versions 2023, 2021 and
2018. These updates resolve a critical vulnerability that could lead to
arbitrary code execution.
Adobe is aware that a proof of concept blog was posted for CVE-2023-38203.
Affected Versions
Product Update number Platform
ColdFusion 2018 Update 17 and earlier versions All
ColdFusion 2021 Update 7 and earlier versions All
ColdFusion 2023 Update 1 and earlier versions All
Solution
Adobe categorizes these updates with the following priority rating and
recommends users update their installations to the newest versions:
Product Updated Version Platform Priority rating Availability
ColdFusion 2018 Update 18 All 1 Tech Note
ColdFusion 2021 Update 8 All 1 Tech Note
ColdFusion 2023 Update 2 All 1 Tech Note
Note:
If you become aware of any package with a deserialization vulnerability in the
future, use the serialfilter.txt file in /lib to denylist the package
(eg: !org.jroup.**;)
Vulnerability Details
Vulnerability Vulnerability CVSS
Category Impact Severity base CVSS vector CVE Numbers
score
Deserialization Arbitrary CVSS:3.1/AV:N/
of Untrusted Data code Critical 9.8 AC:L/PR:N/UI:N/ CVE-2023-38203
( CWE-502 ) execution S:U/C:H/I:H/A:H
Acknowledgments :
Adobe would like to thank the following researcher for reporting this issue and
for working with Adobe to help protect our customers:
o Rahul Maini, Harsh Jaiswal @ ProjectDiscovery Research – CVE-2023-38203
o MoonBack (ipplus360) – CVE-2023-38203
NOTE: Adobe has a private, invite-only, bug bounty program with HackerOne. If
you are interested in working with Adobe as an external security researcher,
please fill out this form for next steps.
Acknowledgments
Adobe would like to thank the following researcher for reporting this issue and
for working with Adobe to help protect our customers:
o Yonghui Han of Fortinet’s FortiGuard Labs – CVE-2023-29308, CVE-2023-29309,
CVE-2023-29310, CVE-2023-29311, CVE-2023-29312, CVE-2023-29313,
CVE-2023-29314, CVE-2023-29315, CVE-2023-29316, CVE-2023-29317,
CVE-2023-29318, CVE-2023-29319
NOTE: Adobe has a private, invite-only, bug bounty program with HackerOne. If
you are interested in working with Adobe as an external security researcher,
please fill out this form for next steps.
Note:
Adobe recommends updating your ColdFusion JDK/JRE LTS version to the latest
update release. Check the ColdFusion support matrix below for your supported
JDK version.
ColdFusion Support Matrix:
CF2018: https://helpx.adobe.com/pdf/coldfusion2018-support-matrix.pdf
CF2021: https://helpx.adobe.com/pdf/coldfusion2021-support-matrix.pdf
CF2023: https://helpx.adobe.com/pdf/coldfusion2023-suport-matrix.pdf
Applying the ColdFusion update without a corresponding JDK update will NOT
secure the server. See the relevant Tech Notes for more details.
Adobe also recommends customers apply the security configuration settings as
outlined on the ColdFusion Security page as well as review the respective
Lockdown guides.
o ColdFusion 2018 Auto-Lockdown Guide
o ColdFusion 2021 Lockdown Guide
o ColdFusion 2023 Lockdown Guide
ColdFusion JDK Requirement
COLDFUSION 2023 (version 2023.0.0.330468) and above
For Application Servers
On JEE installations, set the following JVM flag, ” -Djdk.serialFilter= !
org.mozilla.**;!com.sun.syndication.**;!org.apache.commons.beanutils.**;!
org.jgroups.**;!com.sun.rowset.** ” in the respective startup file depending on
the type of Application Server being used.
For example:
Apache Tomcat Application Server: edit JAVA_OPTS in the ‘Catalina.bat/sh’ file
WebLogic Application Server: edit JAVA_OPTIONS in the ‘startWeblogic.cmd’ file
WildFly/EAP Application Server: edit JAVA_OPTS in the ‘standalone.conf’ file
Set the JVM flags on a JEE installation of ColdFusion, not on a standalone
installation.
COLDFUSION 2021 (version 2021.0.0.323925) and above
For Application Servers
On JEE installations, set the following JVM flag, ” -Djdk.serialFilter= !
org.mozilla.**;!com.sun.syndication.**;!org.apache.commons.beanutils.**;!
org.jgroups.**;!com.sun.rowset.** “
in the respective startup file depending on the type of Application Server
being used.
For example:
Apache Tomcat Application Server: edit JAVA_OPTS in the ‘Catalina.bat/sh’ file
WebLogic Application Server: edit JAVA_OPTIONS in the ‘startWeblogic.cmd’ file
WildFly/EAP Application Server: edit JAVA_OPTS in the ‘standalone.conf’ file
Set the JVM flags on a JEE installation of ColdFusion, not on a standalone
installation.
COLDFUSION 2018 HF1 and above
For Application Servers
On JEE installations, set the following JVM flag, ” -Djdk.serialFilter= !
org.mozilla.**;!com.sun.syndication.**;!org.apache.commons.beanutils.**;!
org.jgroups.**;!com.sun.rowset.** “
in the respective startup file depending on the type of Application Server
being used.
For example:
Apache Tomcat Application Server: edit JAVA_OPTS in the ‘Catalina.bat/sh’ file
WebLogic Application Server: edit JAVA_OPTIONS in the ‘startWeblogic.cmd’ file
WildFly/EAP Application Server: edit JAVA_OPTS in the ‘standalone.conf’ file
Set the JVM flags on a JEE installation of ColdFusion, not on a standalone
installation.
For more information, visit https://helpx.adobe.com/security.html , or email
[email protected]
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