cnvd - cnvd-2020-52849

cnvd-2020-52849

Vulnerability from cnvd

Title: Pi-hole代码注入漏洞

Description:

Pi-hole是Pi-hole公司的一款网络级广告拦截应用程序。

Pi-hole 5.0及之前版本中的piholedhcp存在代码注入漏洞。该漏洞源于外部输入数据构造代码段的过程中，网络系统或产品未正确过滤其中的特殊元素。攻击者可利用该漏洞生成非法的代码段，修改网络系统或组件的预期的执行控制流。

Severity: 中

Patch Name: Pi-hole代码注入漏洞的补丁

Patch Description:

Pi-hole是Pi-hole公司的一款网络级广告拦截应用程序。

Pi-hole 5.0及之前版本中的piholedhcp存在代码注入漏洞。该漏洞源于外部输入数据构造代码段的过程中，网络系统或产品未正确过滤其中的特殊元素。攻击者可利用该漏洞生成非法的代码段，修改网络系统或组件的预期的执行控制流。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:

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://pi-hole.net/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-14971

Impacted products

Name
Pi-Hole Pi-Hole <=5.0

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-14971"
    }
  },
  "description": "Pi-hole\u662fPi-hole\u516c\u53f8\u7684\u4e00\u6b3e\u7f51\u7edc\u7ea7\u5e7f\u544a\u62e6\u622a\u5e94\u7528\u7a0b\u5e8f\u3002\n\nPi-hole 5.0\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684piholedhcp\u5b58\u5728\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5916\u90e8\u8f93\u5165\u6570\u636e\u6784\u9020\u4ee3\u7801\u6bb5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u6b63\u786e\u8fc7\u6ee4\u5176\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u751f\u6210\u975e\u6cd5\u7684\u4ee3\u7801\u6bb5\uff0c\u4fee\u6539\u7f51\u7edc\u7cfb\u7edf\u6216\u7ec4\u4ef6\u7684\u9884\u671f\u7684\u6267\u884c\u63a7\u5236\u6d41\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://pi-hole.net/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-52849",
  "openTime": "2020-09-15",
  "patchDescription": "Pi-hole\u662fPi-hole\u516c\u53f8\u7684\u4e00\u6b3e\u7f51\u7edc\u7ea7\u5e7f\u544a\u62e6\u622a\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nPi-hole 5.0\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684piholedhcp\u5b58\u5728\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5916\u90e8\u8f93\u5165\u6570\u636e\u6784\u9020\u4ee3\u7801\u6bb5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u6b63\u786e\u8fc7\u6ee4\u5176\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u751f\u6210\u975e\u6cd5\u7684\u4ee3\u7801\u6bb5\uff0c\u4fee\u6539\u7f51\u7edc\u7cfb\u7edf\u6216\u7ec4\u4ef6\u7684\u9884\u671f\u7684\u6267\u884c\u63a7\u5236\u6d41\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": "Pi-hole\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Pi-Hole Pi-Hole \u003c=5.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-14971",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-24",
  "title": "Pi-hole\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2020-14971 (GCVE-0-2020-14971)

Vulnerability from cvelistv5

Published

2020-06-23 13:41

Modified

2024-08-04 13:00

Severity ?

CWE

Summary

Pi-hole through 5.0 allows code injection in piholedhcp (the Static DHCP Leases section) by modifying Teleporter backup files and then restoring them. This occurs in settings.php. To exploit this, an attacker would request a backup of limited files via teleporter.php. These are placed into a .tar.gz archive. The attacker then modifies the host parameter in dnsmasq.d files, and then compresses and uploads these files again.

References

▼	URL	Tags
	https://blog.telspace.co.za/2020/06/pi-hole-code-injection-cve-2020-14971.html	x_refsource_MISC
	https://github.com/pi-hole/AdminLTE/pull/1443	x_refsource_CONFIRM
	https://github.com/pi-hole/AdminLTE/commit/c949516ee15fa6a9b0c8511cc4c4d6b0893f3e69	x_refsource_CONFIRM
	https://github.com/pi-hole/AdminLTE/commit/8f6e1365b6dec0ae1aa0b0b15b102c9133f347e5	x_refsource_CONFIRM

Impacted products

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

Show details on NVD website

JSON

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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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