Oracle Retail Service Backbone 15.0.3/16.0.3 RSB kernel information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Oracle Retail Service Backbone 15.0.3/16.0.3. This vulnerability affects unknown code of the component RSB kernel. Performing a manipulation results in information disclosure. This vulnerability is known as CVE-2020-17521. Attacking locally is a requirement. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Oracle Retail Service Backbone 15.0.3/16.0.3. This affects an unknown functionality of the component RSB kernel. 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 weakness was published 01/20/2021 as Oracle Critical Patch Update Advisory - January 2021. It is possible to read the advisory at oracle.com. This vulnerability is uniquely identified as CVE-2020-17521. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

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

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-2370). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Oracle Systems

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

08/12/2020 🔍
01/20/2021 +161 days 🔍
01/20/2021 +0 days 🔍
01/20/2021 +0 days 🔍
10/23/2025 +1737 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - January 2021
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-17521 (🔍)
GCVE (CVE): GCVE-0-2020-17521
GCVE (VulDB): GCVE-100-168435
CERT Bund: WID-SEC-2025-2370 - Oracle Systems: Mehrere Schwachstellen

Entryinfo

Created: 01/20/2021 19:48
Updated: 10/23/2025 10:03
Changes: 01/20/2021 19:48 (39), 02/17/2021 22:30 (6), 02/17/2021 22:37 (16), 10/23/2025 10:03 (22)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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