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ibmIBM88489C90796AAE9B6913277D0F84F010B92FEE1205ADC0E8DB9CE6AD3C8FD30B
HistoryJan 31, 2022 - 5:54 p.m.

Security Bulletin: Publicly disclosed vulnerability (CVE-2021-4034) in Polkit affects IBM Netezza PDA OS Security

2022-01-3117:54:39
www.ibm.com
27

0.001 Low

EPSS

Percentile

46.9%

JSON

Summary

Polkit is shipped with PDA OS Security kits. This Bulletin provides mitigation for the reported CVE

Vulnerability Details

CVEID:CVE-2021-4034
**DESCRIPTION:**Polkit could allow a local authenticated attacker to gain elevated privileges on the system, caused by incorrect handling of the argument vectors in the pkexec utility. By crafting environment variables in a specific way, an attacker could exploit this vulnerability to execute commands with root privileges.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/218087 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM Netezza PDA OS Security All Versions

Remediation/Fixes

None

Workarounds and Mitigations

Temporary mitigation of the reported CVE : CVE-2021-4034, removing the SUID-bit from pkexec on PureData System for Analytics N200x and N3001 is as follows:

Execute below step using “root” user on both ha1/ha2 hosts

chmod 0755 /usr/bin/pkexec

CPENameOperatorVersion
puredata system for analyticseqany

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