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CNVD-2020-32881

Vulnerability from cnvd - Published: 2020-06-13
VLAI
Title
Apache Log4j信任管理问题漏洞
Description
Apache Log4j是美国阿帕奇（Apache）软件基金会的一款基于Java的开源日志记录工具。 Apache Log4j中存在安全漏洞，该漏洞源于SmtpAppender未能验证主机名称与SMTPS连接的SSL/TLS证书是否匹配。攻击者可通过实施中间人攻击利用该漏洞拦截SMTPS连接，获取日志消息。
Severity
中
Patch Name
Apache Log4j信任管理问题漏洞的补丁
Patch Description
Apache Log4j是美国阿帕奇（Apache）软件基金会的一款基于Java的开源日志记录工具。 Apache Log4j中存在安全漏洞，该漏洞源于SmtpAppender未能验证主机名称与SMTPS连接的SSL/TLS证书是否匹配。攻击者可通过实施中间人攻击利用该漏洞拦截SMTPS连接，获取日志消息。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://issues.apache.org/jira/browse/LOG4J2-2819

Reference
https://nvd.nist.gov/vuln/detail/CVE-2020-9488
Impacted products
Name
Apache Log4j
Show details on source website
To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-9488"
    }
  },
  "description": "Apache Log4j\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u8f6f\u4ef6\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u57fa\u4e8eJava\u7684\u5f00\u6e90\u65e5\u5fd7\u8bb0\u5f55\u5de5\u5177\u3002\n\nApache Log4j\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eSmtpAppender\u672a\u80fd\u9a8c\u8bc1\u4e3b\u673a\u540d\u79f0\u4e0eSMTPS\u8fde\u63a5\u7684SSL/TLS\u8bc1\u4e66\u662f\u5426\u5339\u914d\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\u5229\u7528\u8be5\u6f0f\u6d1e\u62e6\u622aSMTPS\u8fde\u63a5\uff0c\u83b7\u53d6\u65e5\u5fd7\u6d88\u606f\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://issues.apache.org/jira/browse/LOG4J2-2819",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-32881",
  "openTime": "2020-06-13",
  "patchDescription": "Apache Log4j\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u8f6f\u4ef6\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u57fa\u4e8eJava\u7684\u5f00\u6e90\u65e5\u5fd7\u8bb0\u5f55\u5de5\u5177\u3002\r\n\r\nApache Log4j\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eSmtpAppender\u672a\u80fd\u9a8c\u8bc1\u4e3b\u673a\u540d\u79f0\u4e0eSMTPS\u8fde\u63a5\u7684SSL/TLS\u8bc1\u4e66\u662f\u5426\u5339\u914d\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\u5229\u7528\u8be5\u6f0f\u6d1e\u62e6\u622aSMTPS\u8fde\u63a5\uff0c\u83b7\u53d6\u65e5\u5fd7\u6d88\u606f\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 Log4j\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Apache Log4j"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-9488",
  "serverity": "\u4e2d",
  "submitTime": "2020-04-28",
  "title": "Apache Log4j\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\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.

Sightings

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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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  • 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.


Detection rules are retrieved from Rulezet.


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