Security Bulletin: IBM® Db2® on Windows is vulnerable to privilege escalation. (CVE-2023-27558)

Summary

IBM® Db2® on Windows is vulnerable to privilege escalation caused by at least one installed service using an unquoted service path. A local attacker could exploit this vulnerability to gain elevated privileges by inserting an executable file in the path of the affected service…

Vulnerability Details

CVEID:CVE-2023-27558
**DESCRIPTION:**IBM Db2 on Windows may be vulnerable to a privilege escalation caused by at least one installed service using an unquoted service path. A local attacker could exploit this vulnerability to gain elevated privileges by inserting an executable file in the path of the affected service.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/249194 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

10.5.0.11

|

Server

IBM® Db2®|

11.1.4.7

|

Server

IBM® Db2®|

11.5.x

|

Server

Windows platform is affected. Linux/Unix platforms are not affected.

Remediation/Fixes

Customers running any vulnerable fixpack level of an affected Program, V10.5, v11.1 and 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: V10.5 FP11, V11.1.4 FP7, and V11.5.8. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.

Windows 32-bit, x86
Windows 64-bit, x86

V11.1| TBD| DT197671| Special Build for V11.1.4 FP7:

Windows 32-bit, x86
Windows 64-bit, x86

V11.5| TBD| DT197671| Special Build for V11.5.7:

Windows 32-bit, x86
Windows 64-bit, x86

Special Build for V11.5.8:

Windows 32-bit, x86
Windows 64-bit, x86

IBM does not disclose key Db2 functionality nor replication steps for a vulnerability to avoid providing too much information to any potential malicious attacker. IBM does not want to enable a malicious attacker with sufficient knowledge to craft an exploit of the vulnerability.

Workarounds and Mitigations

None