Security Bulletin
Summary
Db2 could allow a local authenticated attacker to gain elevated privileges on the system, caused by an unquoted search path in sshd_worker.exe. By inserting arbitrary file in the path, an attacker could exploit this vulnerability to execute arbitrary code with SYSTEM privileges.
Vulnerability Details
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a local authenticated attacker to gain elevated privileges on the system, caused by an unquoted search path in sshd_worker.exe. By inserting arbitrary file in the path, an attacker could exploit this vulnerability to execute arbitrary code with SYSTEM privileges.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/167364 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
All fix pack levels of IBM Db2 V10.1, V10.5, V11.1, and V11.5 editions on Windows are affected. Unix-type platforms and Db2 V9.7 are not affected.
Remediation/Fixes
The recommended solution is to apply the appropriate fix for this vulnerability.
FIX:
The fix for Db2 V10.5 is in V10.5.0.11, available for download from Fix Central.
Customers running any vulnerable fixpack level of an affected Program, V10.1, V10.5, 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: V10.1 FP6, V10.5 FP10, and 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 |
| V10.1 | TBD | IT30430 | Special Build for V10.1 FP6: |
| V10.5 | FP11 | IT30428 | |
| V11.1 | 11.1 FP5 | IT30431 | http://www.ibm.com/support/docview.wss?uid=ibm11115973 |
| V11.5 | TBD | IT30432 | Special Build for V11.5 GA: |
Workarounds and Mitigations
None
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References
Acknowledgement
The vulnerability was reported to IBM by Rich Mirch.
Change History
28 Nov 2019: Initial Publication
29 Nov 2019: Corrected APAR number and link for 10.1 APAR to IT30430.
06 Mar 2020: Updated 10.5 version with a link to 10.5 FP11 image.
*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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Document Information
Modified date:
06 March 2020
UID
ibm11115943