cnvd - cnvd-2021-33988

CNVD-2021-33988

Vulnerability from cnvd - Published: 2021-05-11

Title

Dell EMC iDRAC9 TOCTOU竞争条件漏洞

Description

Dell EMC iDRAC9是美国戴尔（DELL）公司的一套包含硬件和软件的系统管理解决方案。该方案为Dell PowerEdge系统提供远程管理、崩溃系统恢复和电源控制等功能。 Dell EMC iDRAC9 4.40.00.00之前版本存在TOCTOU竞争条件漏洞。攻击者可利用该漏洞提升权限。

Severity

中

Patch Name

Dell EMC iDRAC9 TOCTOU竞争条件漏洞的补丁

Patch Description

Dell EMC iDRAC9是美国戴尔（DELL）公司的一套包含硬件和软件的系统管理解决方案。该方案为Dell PowerEdge系统提供远程管理、崩溃系统恢复和电源控制等功能。 Dell EMC iDRAC9 4.40.00.00之前版本存在TOCTOU竞争条件漏洞。攻击者可利用该漏洞提升权限。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.dell.com/support/kbdoc/000185293

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-21539

Impacted products

Name
Dell EMC iDRAC9 <4.40.00.00

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21539",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-21539"
    }
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  "description": "Dell EMC iDRAC9\u662f\u7f8e\u56fd\u6234\u5c14\uff08DELL\uff09\u516c\u53f8\u7684\u4e00\u5957\u5305\u542b\u786c\u4ef6\u548c\u8f6f\u4ef6\u7684\u7cfb\u7edf\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\u3002\u8be5\u65b9\u6848\u4e3aDell PowerEdge\u7cfb\u7edf\u63d0\u4f9b\u8fdc\u7a0b\u7ba1\u7406\u3001\u5d29\u6e83\u7cfb\u7edf\u6062\u590d\u548c\u7535\u6e90\u63a7\u5236\u7b49\u529f\u80fd\u3002\n\nDell EMC iDRAC9 4.40.00.00\u4e4b\u524d\u7248\u672c\u5b58\u5728TOCTOU\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.dell.com/support/kbdoc/000185293",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-33988",
  "openTime": "2021-05-11",
  "patchDescription": "Dell EMC iDRAC9\u662f\u7f8e\u56fd\u6234\u5c14\uff08DELL\uff09\u516c\u53f8\u7684\u4e00\u5957\u5305\u542b\u786c\u4ef6\u548c\u8f6f\u4ef6\u7684\u7cfb\u7edf\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\u3002\u8be5\u65b9\u6848\u4e3aDell PowerEdge\u7cfb\u7edf\u63d0\u4f9b\u8fdc\u7a0b\u7ba1\u7406\u3001\u5d29\u6e83\u7cfb\u7edf\u6062\u590d\u548c\u7535\u6e90\u63a7\u5236\u7b49\u529f\u80fd\u3002\r\n\r\nDell EMC iDRAC9 4.40.00.00\u4e4b\u524d\u7248\u672c\u5b58\u5728TOCTOU\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Dell EMC iDRAC9 TOCTOU\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Dell EMC iDRAC9 \u003c4.40.00.00"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-21539",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-10",
  "title": "Dell EMC iDRAC9 TOCTOU\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e"
}

CVE-2021-21539 (GCVE-0-2021-21539)

Vulnerability from cvelistv5 – Published: 2021-04-30 20:55 – Updated: 2024-09-16 16:58

Summary

Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface.

Severity ?

5.9 (Medium)


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

CWE

Other

Assigner

dell

References

URL

Tags

https://www.dell.com/support/kbdoc/000185293

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Dell	Integrated Dell Remote Access Controller (iDRAC)	Affected: unspecified , < 4.40.00.00 (custom)

Show details on NVD website

JSON

To clipboard

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        }
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            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
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            "baseScore": 5.9,
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            "confidentialityImpact": "LOW",
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Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2021-33988

CVE-2021-21539 (GCVE-0-2021-21539)

Tags

Sightings

Nomenclature