Vulnerability-Lookup

CNVD-2021-05458

Vulnerability from cnvd - Published: 2021-01-24

Title

IBM AIX访问控制错误漏洞

Description

IBM AIX是美国IBM公司的一款为 IBM Power 体系架构开发的一种基于开放标准的 UNIX 操作系统。 IBM AIX 7.1, 7.2 and AIX VIOS 3.1存在访问控制错误漏洞，该漏洞允许本地用户利用gencore user命令中的漏洞在任何目录中创建任意文件。目前没有详细的漏洞细节提供。

Severity

低

Patch Name

IBM AIX访问控制错误漏洞的补丁

Patch Description

IBM AIX是美国IBM公司的一款为 IBM Power 体系架构开发的一种基于开放标准的 UNIX 操作系统。 IBM AIX 7.1, 7.2 and AIX VIOS 3.1存在访问控制错误漏洞，该漏洞允许本地用户利用gencore user命令中的漏洞在任何目录中创建任意文件。目前没有详细的漏洞细节提供。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.ibm.com/support/pages/node/6406022

Reference

https://www.ibm.com/blogs/psirt/security-bulletin-vulnerability-in-gencore-affects-aix-cve-2020-4887/

Impacted products

Name
['IBM IBM AIX 7.1', 'IBM IBM AIX 7.2', 'IBM IBM AIX VIOS 3.1']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-4887",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-4887"
    }
  },
  "description": "IBM AIX\u662f\u7f8e\u56fdIBM\u516c\u53f8\u7684\u4e00\u6b3e\u4e3a IBM Power \u4f53\u7cfb\u67b6\u6784\u5f00\u53d1\u7684\u4e00\u79cd\u57fa\u4e8e\u5f00\u653e\u6807\u51c6\u7684 UNIX \u64cd\u4f5c\u7cfb\u7edf\u3002\n\nIBM AIX 7.1, 7.2 and AIX VIOS 3.1\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u672c\u5730\u7528\u6237\u5229\u7528gencore user\u547d\u4ee4\u4e2d\u7684\u6f0f\u6d1e\u5728\u4efb\u4f55\u76ee\u5f55\u4e2d\u521b\u5efa\u4efb\u610f\u6587\u4ef6\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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.ibm.com/support/pages/node/6406022",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-05458",
  "openTime": "2021-01-24",
  "patchDescription": "IBM AIX\u662f\u7f8e\u56fdIBM\u516c\u53f8\u7684\u4e00\u6b3e\u4e3a IBM Power \u4f53\u7cfb\u67b6\u6784\u5f00\u53d1\u7684\u4e00\u79cd\u57fa\u4e8e\u5f00\u653e\u6807\u51c6\u7684 UNIX \u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nIBM AIX 7.1, 7.2 and AIX VIOS 3.1\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u672c\u5730\u7528\u6237\u5229\u7528gencore user\u547d\u4ee4\u4e2d\u7684\u6f0f\u6d1e\u5728\u4efb\u4f55\u76ee\u5f55\u4e2d\u521b\u5efa\u4efb\u610f\u6587\u4ef6\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "IBM AIX\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "IBM IBM AIX 7.1",
      "IBM IBM AIX 7.2",
      "IBM IBM AIX VIOS 3.1"
    ]
  },
  "referenceLink": "https://www.ibm.com/blogs/psirt/security-bulletin-vulnerability-in-gencore-affects-aix-cve-2020-4887/",
  "serverity": "\u4f4e",
  "submitTime": "2021-01-22",
  "title": "IBM AIX\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2020-4887 (GCVE-0-2020-4887)

Vulnerability from cvelistv5 – Published: 2021-01-20 15:00 – Updated: 2024-09-16 19:56

Summary

IBM AIX 7.1, 7.2 and AIX VIOS 3.1 could allow a local user to exploit a vulnerability in the gencore user command to create arbitrary files in any directory. IBM X-Force ID: 190911.

Severity

6.2 (Medium)


                        
                          CVSS:3.0/C:N/I:H/AC:L/AV:L/A:N/S:U/PR:N/UI:N/E:U/RL:O/RC:C

CWE

Data Manipulation

Assigner

ibm

References

2 references

URL	Tags
https://www.ibm.com/support/pages/node/6406022	x_refsource_CONFIRM
https://exchange.xforce.ibmcloud.com/vulnerabilit…	vdb-entryx_refsource_XF

Impacted products

2 products

Vendor	Product	Version
IBM	AIX	Affected: 7.1 Affected: 7.2
IBM	VIOS	Affected: 3.1

Date Public

2021-01-19 00:00

Show details on NVD website

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            "url": "https://www.ibm.com/support/pages/node/6406022"
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            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/190911"
          }
        ],
        "title": "CVE Program Container"
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    "cna": {
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          "vendor": "IBM",
          "versions": [
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      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "exploitCodeMaturity": "UNPROVEN",
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            "remediationLevel": "OFFICIAL_FIX",
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            "scope": "UNCHANGED",
            "temporalScore": 5.4,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/C:N/I:H/AC:L/AV:L/A:N/S:U/PR:N/UI:N/E:U/RL:O/RC:C",
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        },
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                    },
                    {
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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.

Action not permitted

CNVD-2021-05458

CVE-2020-4887 (GCVE-0-2020-4887)

Tags

Sightings

Nomenclature