Security Bulletin: Due to use of Apache Log4j, IBM Db2 Web Query for i is vulnerable to arbitrary code execution (CVE-2021-4104, CVE-2022-23302, and CVE-2022-23307) and SQL injection (CVE-2022-23305)

Security Bulletin

Summary

There are multiple vulnerabilities in Apache Log4j (CVE-2021-4104, CVE-2022-23302, CVE-2022-23305, and CVE-2022-23307) as described in the vulnerability details section. Apache Log4j v1 is used by Db2 Web Query for i for generating logs and diagnostic traces in some of its components. IBM has addressed the vulnerability in Db2 Web Query for i by upgrading to Apache Log4j 2.17.

Vulnerability Details

CVEID: CVE-2022-23307
DESCRIPTION: Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by an unsafe deserialization in the in Apache Chainsaw component. By sending specially-crafted input, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/217462 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2022-23305
DESCRIPTION: Apache Log4j is vulnerable to SQL injection. A remote attacker could send specially-crafted SQL statements to the JDBCAppender, which could allow the attacker to view, add, modify or delete information in the back-end database.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/217461 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID: CVE-2022-23302
DESCRIPTION: Apache Log4j could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an unsafe deserialization in JMSSink. By sending specially-crafted JNDI requests using TopicConnectionFactoryBindingName configuration, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 8.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/217460 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2021-4104
DESCRIPTION: Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data when the attacker has write access to the Log4j configuration. If the deployed application is configured to use JMSAppender, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215048 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
IBM Db2 Web Query for i	2.2.0

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading.

The issues can be fixed by upgrading to a higher Db2 Web Query for i release level.
Db2 Web Query for i release 2.2.0 is impacted. The fix is to upgrade to either release 2.2.1 or 2.3.0 and to apply the latest group Program Temporary Fix (PTF) for the release.

Upgrade to release 2.2.1 or 2.3.0 depending on the IBM i release level:

	IBM i 7.4	IBM i 7.3	IBM i 7.2	IBM i 7.1
Db2 Web Query for i	2.3.0	2.3.0	2.2.1	2.2.1

The group PTF numbers and minimum required levels for the fix for each IBM i release are:

Db2 Web Query for i	IBM i 7.4	IBM i 7.3	IBM i 7.2	IBM i 7.1
2.3.0	SF99654 level 4	SF99533 level 4	N/A	N/A
2.2.1	SF99653 level 12	SF99433 level 12	SF99434 level 12	SF99435 level 12

For information on upgrading to Db2 Web Query for i release 2.2.1 or 2.3.0, refer to the Installation and Upgrades link at https://ibm.biz/db2wq-wiki.

Group Program Temporary Fixes (PTFs) can be downloaded from https://www.ibm.com/support/fixcentral/.

Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

25 Jan 2022: 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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Tips

Security Bulletin: Due to use of Apache Log4j, IBM Db2 Web Query for i is vulnerable to arbitrary code execution (CVE-2021-4104, CVE-2022-23302, and CVE-2022-23307) and SQL injection (CVE-2022-23305)