Security Bulletin
Summary
IBM Tivoli Netcool Configuration Manager version 6.4.2 addresses multiple vulnerabilities in Apache components. These vulnerabilities could allow attackers to cause denial of service, excessive resource consumption, application crashes, or trigger unauthorized outbound requests through specially crafted input or malicious policy references. Successful exploitation may impact application availability and system security.
Vulnerability Details
CVEID: CVE-2026-56624
DESCRIPTION: Improper certificate validation in Apache MINA SSHD (server-side). Apache MINA SSHD is a Java library for client-side and server-side SSH.
Server-side OpenSSH user certificate validation during user authentication in an Apache MINA SSHD server did not check for the unsupported force-command or verify-required options that could be embedded in the certificate, nor did it validate these options. As a result it was possible that a user could authenticate with such a certificate that included a force-command option but still was able to execute other commands. What other command exactly would be available to the user depends on the implementation of the server.
This issue is fixed in Apache MINA SSHD 2.19.0 and 3.0.0-M5. Applications are advised to upgrade to these versions.
The fix rejects OpenSSH user certificates that include these options, since Apache MINA SSHD implements neither force-command nor sk-*-cert-v01@openssh.com user certificates (which are the only ones for which verify-required would make sense).
CWE: CWE-295: Improper Certificate Validation
CVSS Source: security@apache.org
CVSS Base score: 7.3
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N)
CVEID: CVE-2026-66142
DESCRIPTION: Apache Neethi is vulnerable to uncontrolled recursion when parsing policies that lack policy Ids or with deeply nested structures, which may lead to a denial of service attack when parsing policies due to runtime memory exhaustion. Users are recommended to upgrade to version 3.2.3, which fixes this issue.
CWE: CWE-400: Uncontrolled Resource Consumption
CVSS Source: CISA ADP
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2026-66143
DESCRIPTION: It is possible to bypass the maximum number of normalized policy alternatives that was introduced in Apache Neethi 3.2.2 via certain crafted policies, which may lead to a denial of service attack via resource consumption. Users are recommended to upgrade to version 3.2.3, which fixes this issue.
CWE: CWE-400: Uncontrolled Resource Consumption
CVSS Source: CISA ADP
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2026-66144
DESCRIPTION: Although remote policy references are not retrieved during policy normalization, if they are manually retrieved via the API it can cause a denial of service attack if a huge policy is retrieved. Users are recommended to upgrade to version 3.2.3, which fixes this issue by imposing a default maximum size on data read from remote policy references.
CWE: CWE-400: Uncontrolled Resource Consumption
CVSS Source: CISA ADP
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| ITNCM | 6.4.2 |
Remediation/Fixes
1# Apache Mina and SSHD Libraries Upgrade - Customer Note
Note:
a. If ITNCM is running on a fix pack older than FP24, then it must first be upgraded to FP24, as this patch is intended to be applied only on top of ITNCM FP24.
b. This patch needs to be applied on all presentation and standalone/linked worker servers.
c. Please use the users with which ncm is installed for applying this patch.
* Replace $INSTALL_DIR with the directory where ITNCM is installed
on your system (e.g /opt/IBM/tivoli/netcool/ncm).
* Replace $JAZZ_PATH in the instructions below with the Jazz Path
directory for your installation (e.g. /opt/IBM/JazzSM).
1. Download the new library versions from maven repository:
- mina-core-2.2.9.jar (https://mvnrepository.com/artifact/org.apache.mina/mina-core/2.2.9)
- sshd-core-2.19.0.jar (https://mvnrepository.com/artifact/org.apache.sshd/sshd-core/2.19.0)
- sshd-common-2.19.0.jar (https://mvnrepository.com/artifact/org.apache.sshd/sshd-common/2.19.0)
2. Back up the existing libraries by copying them to a safe location:
cp $INSTALL_DIR/lib/mina-core-2.2.4.jar <backup_location>/
cp $INSTALL_DIR/lib/sshd-core-2.12.1.jar <backup_location>/
cp $INSTALL_DIR/lib/sshd-common-2.12.1.jar <backup_location>/
cp $INSTALL_DIR/autodiscovery/lib/sshd-core-2.13.2.jar <backup_location>/
cp $INSTALL_DIR/autodiscovery/lib/sshd-common-2.13.2.jar <backup_location>/
3. Stop all running ITNCM processes by using the "itncm.sh stop" command:
$INSTALL_DIR/bin/itncm.sh stop
4. Copy the new mina-core-2.2.9.jar to the following locations:
cp mina-core-2.2.9.jar $INSTALL_DIR/lib/
cp mina-core-2.2.9.jar $INSTALL_DIR/autodiscovery/lib/
cp mina-core-2.2.9.jar $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/IMC.ear/webstart.war/
5. Copy the new sshd-core-2.19.0.jar to the following locations:
cp sshd-core-2.19.0.jar $INSTALL_DIR/lib/
cp sshd-core-2.19.0.jar $INSTALL_DIR/autodiscovery/lib/
cp sshd-core-2.19.0.jar $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/IMC.ear/webstart.war/
6. Copy the new sshd-common-2.19.0.jar to the following locations:
cp sshd-common-2.19.0.jar $INSTALL_DIR/lib/
cp sshd-common-2.19.0.jar $INSTALL_DIR/autodiscovery/lib/
cp sshd-common-2.19.0.jar $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/IMC.ear/webstart.war/
7. Update the classpath configuration files:
- Edit $INSTALL_DIR/bin/classpath and change:
- mina-core-2.2.4.jar to mina-core-2.2.9.jar
- sshd-core-2.12.1.jar to sshd-core-2.19.0.jar
- sshd-common-2.12.1.jar to sshd-common-2.19.0.jar
- Edit $INSTALL_DIR/bin/classpath-core and change:
- mina-core-2.2.4.jar to mina-core-2.2.9.jar
- sshd-core-2.12.1.jar to sshd-core-2.19.0.jar
- sshd-common-2.12.1.jar to sshd-common-2.19.0.jar
8. Remove the old mina-core-2.2.4.jar from all locations:
rm -rf $INSTALL_DIR/lib/mina-core-2.2.4.jar
rm -rf $INSTALL_DIR/autodiscovery/lib/mina-core-2.2.4.jar
rm -rf $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/IMC.ear/webstart.war/mina-core-2.2.4.jar
9. Remove the old sshd-core 2.12.1 and 2.13.2 jars from all locations:
rm -rf $INSTALL_DIR/lib/sshd-core-2.12.1.jar
rm -rf $INSTALL_DIR/autodiscovery/lib/sshd-core-2.13.2.jar
rm -rf $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/IMC.ear/webstart.war/sshd-core-2.12.1.jar
10. Remove the old sshd-common 2.12.1 and 2.13.2 jars from all locations:
rm -rf $INSTALL_DIR/lib/sshd-common-2.12.1.jar
rm -rf $INSTALL_DIR/autodiscovery/lib/sshd-common-2.13.2.jar
rm -rf $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/IMC.ear/webstart.war/sshd-common-2.12.1.jar
11. Restart ITNCM by using the "itncm.sh start" command:
$INSTALL_DIR/bin/itncm.sh start
To roll back to the previous versions of jars, please stop ITNCM as mentioned in step 3 and restore the backups that you made in step 2 to all the locations mentioned in steps 4, 5, and 6, revert the classpath changes made in step 7, remove the newer version of libraries which were earlier copied in steps 4,5 and 6, then perform step 11 to start ITNCM again.
2# Neethi Library Upgrade - Customer Note
Note:
a. If ITNCM is running on an older fix pack, it must first be upgraded to FP24, as this patch is intended to be applied only on top of ITNCM FP24.
b. This patch needs to be applied on all presentation servers.
c. Please use the users with which ncm is installed for applying this patch.
* Replace $JAZZ_PATH in the instructions below with the Jazz Path
directory for your installation (e.g. /opt/IBM/JazzSM).
1. Download the new library version from maven repository:
- neethi-3.2.3.jar (https://mvnrepository.com/artifact/org.apache.neethi/neethi/3.2.3)
2. Back up the existing libraries by copying them to a safe location:
cp $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/Intelliden\ R-Series.ear/SOAP-API.war/WEB-INF/lib/neethi-3.2.0.jar <backup_location>/
cp $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/Intelliden\ R-Series.ear/SOAP-API.war/webstart/neethi-3.2.0.jar <backup_location>/
cp $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/Intelliden\ R-Series.ear/ICOSClient.war/WEB-INF/lib/neethi-3.2.0.jar <backup_location>/
3. Stop all running ITNCM processes by using the "itncm.sh stop" command:
$INSTALL_DIR/bin/itncm.sh stop
4. Copy the new neethi-3.2.3.jar to the following locations:
cp neethi-3.2.3.jar $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/Intelliden\ R-Series.ear/SOAP-API.war/WEB-INF/lib/
cp neethi-3.2.3.jar $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/Intelliden\ R-Series.ear/SOAP-API.war/webstart/
cp neethi-3.2.3.jar $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/Intelliden\ R-Series.ear/ICOSClient.war/WEB-INF/lib/
5. Remove the old neethi-3.2.0.jar from all locations:
rm -rf $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/Intelliden\ R-Series.ear/SOAP-API.war/WEB-INF/lib/neethi-3.2.0.jar
rm -rf $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/Intelliden\ R-Series.ear/SOAP-API.war/webstart/neethi-3.2.0.jar
rm -rf $JAZZ_PATH/profile/installedApps/JazzSMNode01Cell/Intelliden\ R-Series.ear/ICOSClient.war/WEB-INF/lib/neethi-3.2.0.jar
6. Restart ITNCM by using the "itncm.sh start" command:
$INSTALL_DIR/bin/itncm.sh start
To roll back to the previous version of the jar, please stop ITNCM as mentioned in step 3 and restore the backups that you made in step 2 to all the locations mentioned in step 4, remove the newer version of the library which was earlier copied in step 4, then perform step 6 to start ITNCM again.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
24 Aug 2026: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
24 August 2026
Initial Publish date:
24 August 2026
UID
ibm17284677