Vulnerability-Lookup

CNVD-2021-89938

Vulnerability from cnvd - Published: 2021-11-23

Title

MySQL Connectors存在未明漏洞（CNVD-2021-89938）

Description

MySQL Connectors是针对JDBC、ODBC及.NET的基于标准的驱动程序，使开发人员能够以其选择的语言构建数据库应用程序。 MySQL Connectors 8.0.26及更早版本中的Connector/J组件存在安全漏洞。攻击者可利用该漏洞可能会导致对关键数据的未授权访问或对所有MySQL连接器可访问数据的完全访问，以及导致MySQL 连接器挂起或频繁重复崩溃（完整 DOS）。

Severity

高

Patch Name

MySQL Connectors存在未明漏洞（CNVD-2021-89938）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.oracle.com/security-alerts/cpuoct2021.html

Reference

https://www.oracle.com/security-alerts/cpuoct2021.html

Impacted products

Name
Oracle MySQL Connectors <=8.0.26

Show details on source website

JSON

To clipboard

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  "products": {
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  "referenceLink": "https://www.oracle.com/security-alerts/cpuoct2021.html",
  "serverity": "\u9ad8",
  "submitTime": "2021-10-20",
  "title": "MySQL Connectors\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-89938\uff09"
}

CVE-2021-2471 (GCVE-0-2021-2471)

Vulnerability from cvelistv5 – Published: 2021-10-20 10:49 – Updated: 2024-09-25 19:39

Summary

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.26 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors. CVSS 3.1 Base Score 5.9 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H).

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-25 19:15 UTC

CWE

Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors.

Assigner

oracle mitre root

References

2 references

URL	Tags
https://www.oracle.com/security-alerts/cpuoct2021.html	x_refsource_MISC
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Oracle Corporation	MySQL Connectors	Affected: 8.0.26 and prior

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.