Vulnerability-Lookup

CNVD-2021-27936

Vulnerability from cnvd - Published: 2021-04-13

Title

OpenBMC phosphor-host-ipmid权限提升漏洞

Description

OpenBMC phosphor-host-ipmid是OpenBMC社区的一款基于dbus的ipmid（智能平台管理接口服务器）。 OpenBMC phosphor-host-ipmid 2020-04-03之前版本中的user_channel/passwd_mgr.cpp文件存在安全漏洞，该漏洞源于程序为创建的/etc/ipmi_pass文件分配了全局可读权限。攻击者可利用该漏洞读取并解码凭证，提升权限。

Severity

中

Patch Name

OpenBMC phosphor-host-ipmid权限提升漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/openbmc/phosphor-host-ipmid/commit/b265455a2518ece7c004b43c144199ec980fc620

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-14156

Impacted products

Name
OpenBMC OpenBMC phosphor-host-ipmid <2020-04-03

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-14156"
    }
  },
  "description": "OpenBMC phosphor-host-ipmid\u662fOpenBMC\u793e\u533a\u7684\u4e00\u6b3e\u57fa\u4e8edbus\u7684ipmid\uff08\u667a\u80fd\u5e73\u53f0\u7ba1\u7406\u63a5\u53e3\u670d\u52a1\u5668\uff09\u3002\n\nOpenBMC phosphor-host-ipmid 2020-04-03\u4e4b\u524d\u7248\u672c\u4e2d\u7684user_channel/passwd_mgr.cpp\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u4e3a\u521b\u5efa\u7684/etc/ipmi_pass\u6587\u4ef6\u5206\u914d\u4e86\u5168\u5c40\u53ef\u8bfb\u6743\u9650\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u5e76\u89e3\u7801\u51ed\u8bc1\uff0c\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://github.com/openbmc/phosphor-host-ipmid/commit/b265455a2518ece7c004b43c144199ec980fc620",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-27936",
  "openTime": "2021-04-13",
  "patchDescription": "OpenBMC phosphor-host-ipmid\u662fOpenBMC\u793e\u533a\u7684\u4e00\u6b3e\u57fa\u4e8edbus\u7684ipmid\uff08\u667a\u80fd\u5e73\u53f0\u7ba1\u7406\u63a5\u53e3\u670d\u52a1\u5668\uff09\u3002\r\n\r\nOpenBMC phosphor-host-ipmid 2020-04-03\u4e4b\u524d\u7248\u672c\u4e2d\u7684user_channel/passwd_mgr.cpp\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u4e3a\u521b\u5efa\u7684/etc/ipmi_pass\u6587\u4ef6\u5206\u914d\u4e86\u5168\u5c40\u53ef\u8bfb\u6743\u9650\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u5e76\u89e3\u7801\u51ed\u8bc1\uff0c\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": "OpenBMC phosphor-host-ipmid\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "OpenBMC OpenBMC phosphor-host-ipmid \u003c2020-04-03"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-14156",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-16",
  "title": "OpenBMC phosphor-host-ipmid\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2020-14156 (GCVE-0-2020-14156)

Vulnerability from cvelistv5 – Published: 2020-06-15 17:35 – Updated: 2024-08-04 12:39

Summary

user_channel/passwd_mgr.cpp in OpenBMC phosphor-host-ipmid before 2020-04-03 does not ensure that /etc/ipmi-pass has strong file permissions.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

3 references

URL	Tags
https://github.com/openbmc/phosphor-host-ipmid/co…	x_refsource_MISC
https://github.com/openbmc/openbmc/issues/3670	x_refsource_CONFIRM
https://lists.ozlabs.org/pipermail/openbmc/2020-J…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:39:36.041Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/openbmc/phosphor-host-ipmid/commit/b265455a2518ece7c004b43c144199ec980fc620"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/openbmc/openbmc/issues/3670"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://lists.ozlabs.org/pipermail/openbmc/2020-June/022020.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "user_channel/passwd_mgr.cpp in OpenBMC phosphor-host-ipmid before 2020-04-03 does not ensure that /etc/ipmi-pass has strong file permissions."
        }
      ],
      "problemTypes": [
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              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-06-15T19:51:54.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/openbmc/phosphor-host-ipmid/commit/b265455a2518ece7c004b43c144199ec980fc620"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/openbmc/openbmc/issues/3670"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://lists.ozlabs.org/pipermail/openbmc/2020-June/022020.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-14156",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
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            },
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              "url": "https://lists.ozlabs.org/pipermail/openbmc/2020-June/022020.html"
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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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.

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Action not permitted

CNVD-2021-27936

CVE-2020-14156 (GCVE-0-2020-14156)

Tags

Sightings

Nomenclature

Related by attack behaviour