cnvd - cnvd-2021-27936

cnvd-2021-27936

Vulnerability from cnvd

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:

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。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://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

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{
  "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

Modified

2024-08-04 12:39

Severity ?

CWE

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.

References

▼	URL	Tags
	https://github.com/openbmc/phosphor-host-ipmid/commit/b265455a2518ece7c004b43c144199ec980fc620	x_refsource_MISC
	https://github.com/openbmc/openbmc/issues/3670	x_refsource_CONFIRM
	https://lists.ozlabs.org/pipermail/openbmc/2020-June/022020.html	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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          },
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          "url": "https://lists.ozlabs.org/pipermail/openbmc/2020-June/022020.html"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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