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Security Bulletin: IBM® Db2® is vulnerable to privilege escalation (CVE-2020-4230).

Security Bulletin


Summary

IBM Db2 is vulnerable to a privilege escalation. An authenticated local attacker with special permissions can execute specially crafted Db2 commands to modify the owner of stored procedures to SYSIBM, causing a privilege escalation.

Vulnerability Details

CVEID:   CVE-2020-4230
DESCRIPTION:   IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) is vulnerable to an escalation of privilege when an authenticated local attacker with special permissions executes specially crafted Db2 commands.
CVSS Base score: 6.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/175212 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

All fix pack levels of IBM Db2 V11.1 and V11.5 editions on all platforms are affected.

Remediation/Fixes

Customers running any vulnerable fixpack level of an affected Program, V11.1, V11.5 can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent fixpack level for each impacted release: V11.1 FP5 V11.5 GA. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.
Release Fixed in fix pack APAR Download URL
V11.1 TBD IT31604 Special Build for V11.1 FP5:

AIX 64-bit
Linux 32-bit, x86-32
Linux 64-bit, x86-64
Linux 64-bit, POWER™ little endian
Linux 64-bit, System z®, System z9® or zSeries®
Windows 32-bit, x86
Windows 64-bit, x86

V11.5 TBD IT31481 Special Build for V11.5 GA:

AIX 64-bit
Linux 32-bit, x86-32
Linux 64-bit, x86-64
Linux 64-bit, POWER™ little endian
Linux 64-bit, System z®, System z9® or zSeries®
Windows 32-bit, x86
Windows 64-bit, x86

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

18 Feb 2020: Initial Publication
05 Mar 2020: Added the affected software editions
05 Mar 2020: Corrected special build links for all platforms

*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.

Document Location

Worldwide

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Component":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"11.1, 11.5","Edition":"Advanced Enterprise Server;Advanced Workgroup Server;Enterprise Server;Express;Express-C;Personal;Workgroup Server"}]

Document Information

Modified date:
05 March 2020

UID

ibm12878809