cnvd-2020-04673
Vulnerability from cnvd
Title
OpenSMTPD远程命令执行漏洞
Description
OpenSMTPD是OpenBSD团队开发的一个免费的服务器端SMTP协议实现，通过RFC5321定义，也是OpenBSD项目的一部分。 OpenSMTPD存在远程命令执行漏洞。允许远程攻击者通过特制的smtp会话以根用户身份执行任意命令，如MAIL FROM字段中的shell元字符所示。
Severity
高
Patch Name
OpenSMTPD远程命令执行漏洞的补丁
Patch Description
OpenSMTPD是OpenBSD团队开发的一个免费的服务器端SMTP协议实现，通过RFC5321定义，也是OpenBSD项目的一部分。 OpenSMTPD存在远程命令执行漏洞。允许远程攻击者通过特制的smtp会话以根用户身份执行任意命令，如MAIL FROM字段中的shell元字符所示。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，补丁获取链接： https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45

Reference
https://nvd.nist.gov/vuln/detail/CVE-2020-7247
Impacted products
Name
OpenBSD OpenSMTPD
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7247"
    }
  },
  "description": "OpenSMTPD\u662fOpenBSD\u56e2\u961f\u5f00\u53d1\u7684\u4e00\u4e2a\u514d\u8d39\u7684\u670d\u52a1\u5668\u7aefSMTP\u534f\u8bae\u5b9e\u73b0\uff0c\u901a\u8fc7RFC5321\u5b9a\u4e49\uff0c\u4e5f\u662fOpenBSD\u9879\u76ee\u7684\u4e00\u90e8\u5206\u3002\n\nOpenSMTPD\u5b58\u5728\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u3002\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u7279\u5236\u7684smtp\u4f1a\u8bdd\u4ee5\u6839\u7528\u6237\u8eab\u4efd\u6267\u884c\u4efb\u610f\u547d\u4ee4\uff0c\u5982MAIL FROM\u5b57\u6bb5\u4e2d\u7684shell\u5143\u5b57\u7b26\u6240\u793a\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-04673",
  "openTime": "2020-02-11",
  "patchDescription": "OpenSMTPD\u662fOpenBSD\u56e2\u961f\u5f00\u53d1\u7684\u4e00\u4e2a\u514d\u8d39\u7684\u670d\u52a1\u5668\u7aefSMTP\u534f\u8bae\u5b9e\u73b0\uff0c\u901a\u8fc7RFC5321\u5b9a\u4e49\uff0c\u4e5f\u662fOpenBSD\u9879\u76ee\u7684\u4e00\u90e8\u5206\u3002\r\n\r\nOpenSMTPD\u5b58\u5728\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u3002\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u7279\u5236\u7684smtp\u4f1a\u8bdd\u4ee5\u6839\u7528\u6237\u8eab\u4efd\u6267\u884c\u4efb\u610f\u547d\u4ee4\uff0c\u5982MAIL FROM\u5b57\u6bb5\u4e2d\u7684shell\u5143\u5b57\u7b26\u6240\u793a\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": "OpenSMTPD\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "OpenBSD OpenSMTPD"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-7247",
  "serverity": "\u9ad8",
  "submitTime": "2020-02-03",
  "title": "OpenSMTPD\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e"
}


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