Oracle Database 12.1.0.2/12.2.0.1/18c/19c RDBMS/Optimizer information disclosure

Summaryinfo

A vulnerability marked as problematic has been reported in Oracle Database 12.1.0.2/12.2.0.1/18c/19c. Affected by this issue is some unknown functionality of the component RDBMS/Optimizer. Performing a manipulation results in information disclosure. This vulnerability is reported as CVE-2020-2734. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Oracle Database 12.1.0.2/12.2.0.1/18c/19c (Database Software). This affects an unknown code of the component RDBMS/Optimizer. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Vulnerability in the RDBMS/Optimizer component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1, 18c and 19c. Easily exploitable vulnerability allows high privileged attacker having Execute on DBMS_SQLTUNE privilege with network access via Oracle Net to compromise RDBMS/Optimizer. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of RDBMS/Optimizer accessible data. CVSS 3.0 Base Score 2.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N).

The weakness was disclosed 04/15/2020 as Oracle Critical Patch Update Advisory - April 2020 as confirmed advisory (Website). The advisory is shared at oracle.com. This vulnerability is uniquely identified as CVE-2020-2734. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-153686, VDB-153290, VDB-153291 and VDB-153293 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Database Software

Vendor

• Oracle

Name

• Database

Version

• 12.1.0.2
• 12.2.0.1
• 18c
• 19c

License

• commercial

Website

• Vendor: https://www.oracle.com

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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