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Vulnerability DatabaseCVE-2023-21827

CVE-2023-21827: 
Oracle Database Server vulnerability analysis and mitigation

Overview

A vulnerability was identified in the Oracle Database Data Redaction component of Oracle Database Server, tracked as CVE-2023-21827. The vulnerability affects Oracle Database versions 19c and 21c. This security flaw was disclosed as part of Oracle's January 2023 Critical Patch Update (Oracle CPU).

Technical details

The vulnerability is characterized as easily exploitable and requires a low-privileged attacker with Create Session privilege and network access via Oracle Net to compromise Oracle Database Data Redaction. The vulnerability has been assigned a CVSS 3.1 Base Score of 4.3, primarily impacting confidentiality. The CVSS Vector is: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N (Oracle CPU).

Impact

Successful exploitation of this vulnerability can result in unauthorized read access to a subset of Oracle Database Data Redaction accessible data (Oracle CPU).

Mitigation and workarounds

Oracle has released security patches for this vulnerability as part of its January 2023 Critical Patch Update. Oracle strongly recommends that customers apply Critical Patch Update security patches as soon as possible due to the threat posed by successful attacks (Oracle CPU).

Additional resources

Source: This report was generated using AI

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