Vulnerability-Lookup

CNVD-2020-04539

Vulnerability from cnvd - Published: 2020-02-11

Title

MariaDB mysql_install_db脚本权限提升漏洞

Description

MariaDB数据库管理系统是MySQL的一个分支，主要由开源社区在维护，采用GPL授权许可。 MariaDB的目的是完全兼容MySQL，包括API和命令行，使之能轻松成为MySQL的代替品。 MariaDB mysql_install_db脚本存在权限提升漏洞，攻击者可通过使用symlink攻击利用该漏洞从mysql用户帐户到根用户获得提升的特权。

Severity

高

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://mariadb.org/

Reference

https://exchange.xforce.ibmcloud.com/vulnerabilities/175717

Impacted products

Name
MariaDB MariaDB

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7221"
    }
  },
  "description": "MariaDB\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u662fMySQL\u7684\u4e00\u4e2a\u5206\u652f\uff0c\u4e3b\u8981\u7531\u5f00\u6e90\u793e\u533a\u5728\u7ef4\u62a4\uff0c\u91c7\u7528GPL\u6388\u6743\u8bb8\u53ef\u3002 MariaDB\u7684\u76ee\u7684\u662f\u5b8c\u5168\u517c\u5bb9MySQL\uff0c\u5305\u62ecAPI\u548c\u547d\u4ee4\u884c\uff0c\u4f7f\u4e4b\u80fd\u8f7b\u677e\u6210\u4e3aMySQL\u7684\u4ee3\u66ff\u54c1\u3002\n\nMariaDB mysql_install_db\u811a\u672c\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4f7f\u7528symlink\u653b\u51fb\u5229\u7528\u8be5\u6f0f\u6d1e\u4ecemysql\u7528\u6237\u5e10\u6237\u5230\u6839\u7528\u6237\u83b7\u5f97\u63d0\u5347\u7684\u7279\u6743\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://mariadb.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-04539",
  "openTime": "2020-02-11",
  "products": {
    "product": "MariaDB MariaDB"
  },
  "referenceLink": "https://exchange.xforce.ibmcloud.com/vulnerabilities/175717",
  "serverity": "\u9ad8",
  "submitTime": "2020-02-06",
  "title": "MariaDB mysql_install_db\u811a\u672c\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2020-7221 (GCVE-0-2020-7221)

Vulnerability from cvelistv5 – Published: 2020-02-04 16:57 – Updated: 2024-08-04 09:25

Summary

mysql_install_db in MariaDB 10.4.7 through 10.4.11 allows privilege escalation from the mysql user account to root because chown and chmod are performed unsafely, as demonstrated by a symlink attack on a chmod 04755 of auth_pam_tool_dir/auth_pam_tool. NOTE: this does not affect the Oracle MySQL product, which implements mysql_install_db differently.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://seclists.org/oss-sec/2020/q1/55	x_refsource_MISC
https://bugzilla.suse.com/show_bug.cgi?id=1160868	x_refsource_MISC
https://github.com/MariaDB/server/commit/9d18b624…	x_refsource_CONFIRM

Date Public

2020-01-28 00:00

Show details on NVD website

JSON

To clipboard

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            "url": "https://github.com/MariaDB/server/commit/9d18b6246755472c8324bf3e20e234e08ac45618"
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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.

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.

Action not permitted

CNVD-2020-04539

CVE-2020-7221 (GCVE-0-2020-7221)

Tags

Sightings

Nomenclature

Related by attack behaviour