CNVD-2016-04948

Vulnerability from cnvd - Published: 2016-07-19
VLAI
Title
Apache HTTP Server存在httpoxy远程代理感染漏洞
Description
Apache HTTP Server是美国阿帕奇（Apache）软件基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 httpoxy是一组影响应用程序代码在CGI环境运行的漏洞。该漏洞主要存在于多个Web服务器、Web框架和编程语言中。可对HTTP头部的Proxy字段名变换为“HTTP_PROXY”，Value值不变，进而传递给对应的CGI执行；若CGI或脚本中使用对外请求的组件依赖的是“HTTP_PROXY”环境变量，就可能被污染。未经身份验证的远程攻击者利用漏洞可发起中间人攻击，或在服务器上启动任意主机的连接。 Apache HTTP Server存在httpoxy远程代理感染漏洞，该漏洞源于程序未能解决RFC 3875模式下的命名空间冲突。程序未能正确处理来自HTTP_PROXY环境变量中不可信客户端数据应用程序。允许远程攻击者通过精心设计的HTTP请求代理头重定向应用程序的出站HTTP流量到任意一个代理服务器。
Severity
中
Patch Name
Apache HTTP Server存在httpoxy远程代理感染漏洞的补丁
Patch Description
Apache HTTP Server是美国阿帕奇（Apache）软件基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 httpoxy是一组影响应用程序代码在CGI环境运行的漏洞。该漏洞主要存在于多个Web服务器、Web框架和编程语言中。可对HTTP头部的Proxy字段名变换为“HTTP_PROXY”，Value值不变，进而传递给对应的CGI执行；若CGI或脚本中使用对外请求的组件依赖的是“HTTP_PROXY”环境变量，就可能被污染。未经身份验证的远程攻击者利用漏洞可发起中间人攻击，或在服务器上启动任意主机的连接。 Apache HTTP Server存在httpoxy远程代理感染漏洞，该漏洞源于程序未能解决RFC 3875模式下的命名空间冲突。程序未能正确处理来自HTTP_PROXY环境变量中不可信客户端数据应用程序。允许远程攻击者通过精心设计的HTTP请求代理头重定向应用程序的出站HTTP流量到任意一个代理服务器。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

厂商提供了修复方案，请及时更新： http://www.apache.org/security/asf-httpoxy-response.txt

Reference
https://httpoxy.org/ https://www.kb.cert.org/vuls/id/797896 https://www.apache.org/security/asf-httpoxy-response.txt https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-5387
Impacted products
Name
['Apache HTTP Server', 'Apache HTTP Server <=2.4.23']
Show details on source website
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{
  "bids": {
    "bid": {
      "bidNumber": "91816"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-5387"
    }
  },
  "description": "Apache HTTP Server\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u8f6f\u4ef6\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90\u7f51\u9875\u670d\u52a1\u5668\u3002\u8be5\u670d\u52a1\u5668\u5177\u6709\u5feb\u901f\u3001\u53ef\u9760\u4e14\u53ef\u901a\u8fc7\u7b80\u5355\u7684API\u8fdb\u884c\u6269\u5145\u7684\u7279\u70b9\u3002 \r\n\r\nhttpoxy\u662f\u4e00\u7ec4\u5f71\u54cd\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u5728CGI\u73af\u5883\u8fd0\u884c\u7684\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4e3b\u8981\u5b58\u5728\u4e8e\u591a\u4e2aWeb\u670d\u52a1\u5668\u3001Web\u6846\u67b6\u548c\u7f16\u7a0b\u8bed\u8a00\u4e2d\u3002\u53ef\u5bf9HTTP\u5934\u90e8\u7684Proxy\u5b57\u6bb5\u540d\u53d8\u6362\u4e3a\u201cHTTP_PROXY\u201d\uff0cValue\u503c\u4e0d\u53d8\uff0c\u8fdb\u800c\u4f20\u9012\u7ed9\u5bf9\u5e94\u7684CGI\u6267\u884c\uff1b\u82e5CGI\u6216\u811a\u672c\u4e2d\u4f7f\u7528\u5bf9\u5916\u8bf7\u6c42\u7684\u7ec4\u4ef6\u4f9d\u8d56\u7684\u662f\u201cHTTP_PROXY\u201d\u73af\u5883\u53d8\u91cf\uff0c\u5c31\u53ef\u80fd\u88ab\u6c61\u67d3\u3002\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u53ef\u53d1\u8d77\u4e2d\u95f4\u4eba\u653b\u51fb\uff0c\u6216\u5728\u670d\u52a1\u5668\u4e0a\u542f\u52a8\u4efb\u610f\u4e3b\u673a\u7684\u8fde\u63a5\u3002 \r\n\r\nApache HTTP Server\u5b58\u5728httpoxy\u8fdc\u7a0b\u4ee3\u7406\u611f\u67d3\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u89e3\u51b3RFC 3875\u6a21\u5f0f\u4e0b\u7684\u547d\u540d\u7a7a\u95f4\u51b2\u7a81\u3002\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5904\u7406\u6765\u81eaHTTP_PROXY\u73af\u5883\u53d8\u91cf\u4e2d\u4e0d\u53ef\u4fe1\u5ba2\u6237\u7aef\u6570\u636e\u5e94\u7528\u7a0b\u5e8f\u3002\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684HTTP\u8bf7\u6c42\u4ee3\u7406\u5934\u91cd\u5b9a\u5411\u5e94\u7528\u7a0b\u5e8f\u7684\u51fa\u7ad9HTTP\u6d41\u91cf\u5230\u4efb\u610f\u4e00\u4e2a\u4ee3\u7406\u670d\u52a1\u5668\u3002",
  "discovererName": "Scott Geary",
  "formalWay": "\u5382\u5546\u63d0\u4f9b\u4e86\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u53ca\u65f6\u66f4\u65b0\uff1a\r\nhttp://www.apache.org/security/asf-httpoxy-response.txt",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-04948",
  "openTime": "2016-07-19",
  "patchDescription": "Apache HTTP Server\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u8f6f\u4ef6\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90\u7f51\u9875\u670d\u52a1\u5668\u3002\u8be5\u670d\u52a1\u5668\u5177\u6709\u5feb\u901f\u3001\u53ef\u9760\u4e14\u53ef\u901a\u8fc7\u7b80\u5355\u7684API\u8fdb\u884c\u6269\u5145\u7684\u7279\u70b9\u3002\r\nhttpoxy\u662f\u4e00\u7ec4\u5f71\u54cd\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u5728CGI\u73af\u5883\u8fd0\u884c\u7684\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4e3b\u8981\u5b58\u5728\u4e8e\u591a\u4e2aWeb\u670d\u52a1\u5668\u3001Web\u6846\u67b6\u548c\u7f16\u7a0b\u8bed\u8a00\u4e2d\u3002\u53ef\u5bf9HTTP\u5934\u90e8\u7684Proxy\u5b57\u6bb5\u540d\u53d8\u6362\u4e3a\u201cHTTP_PROXY\u201d\uff0cValue\u503c\u4e0d\u53d8\uff0c\u8fdb\u800c\u4f20\u9012\u7ed9\u5bf9\u5e94\u7684CGI\u6267\u884c\uff1b\u82e5CGI\u6216\u811a\u672c\u4e2d\u4f7f\u7528\u5bf9\u5916\u8bf7\u6c42\u7684\u7ec4\u4ef6\u4f9d\u8d56\u7684\u662f\u201cHTTP_PROXY\u201d\u73af\u5883\u53d8\u91cf\uff0c\u5c31\u53ef\u80fd\u88ab\u6c61\u67d3\u3002\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u53ef\u53d1\u8d77\u4e2d\u95f4\u4eba\u653b\u51fb\uff0c\u6216\u5728\u670d\u52a1\u5668\u4e0a\u542f\u52a8\u4efb\u610f\u4e3b\u673a\u7684\u8fde\u63a5\u3002\r\nApache HTTP Server\u5b58\u5728httpoxy\u8fdc\u7a0b\u4ee3\u7406\u611f\u67d3\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u89e3\u51b3RFC 3875\u6a21\u5f0f\u4e0b\u7684\u547d\u540d\u7a7a\u95f4\u51b2\u7a81\u3002\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5904\u7406\u6765\u81eaHTTP_PROXY\u73af\u5883\u53d8\u91cf\u4e2d\u4e0d\u53ef\u4fe1\u5ba2\u6237\u7aef\u6570\u636e\u5e94\u7528\u7a0b\u5e8f\u3002\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684HTTP\u8bf7\u6c42\u4ee3\u7406\u5934\u91cd\u5b9a\u5411\u5e94\u7528\u7a0b\u5e8f\u7684\u51fa\u7ad9HTTP\u6d41\u91cf\u5230\u4efb\u610f\u4e00\u4e2a\u4ee3\u7406\u670d\u52a1\u5668\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": "Apache HTTP Server\u5b58\u5728httpoxy\u8fdc\u7a0b\u4ee3\u7406\u611f\u67d3\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Apache HTTP Server",
      "Apache HTTP Server \u003c=2.4.23"
    ]
  },
  "referenceLink": "https://httpoxy.org/\r\nhttps://www.kb.cert.org/vuls/id/797896\r\nhttps://www.apache.org/security/asf-httpoxy-response.txt\r\nhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-5387",
  "serverity": "\u4e2d",
  "submitTime": "2016-07-19",
  "title": "Apache HTTP Server\u5b58\u5728httpoxy\u8fdc\u7a0b\u4ee3\u7406\u611f\u67d3\u6f0f\u6d1e"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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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.
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