CNVD-2020-14698

Vulnerability from cnvd - Published: 2020-02-29
VLAI
Title
PHP空指针解引用漏洞
Description
PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHPGroup和开放源代码社区的共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。 PHP存在空指针解引用漏洞。该漏洞源于在使用文件上传功能时，如果启用了上传进度跟踪，但是session.upload_progress.cleanup设置为0（禁用），且文件上传失败时，上传进程会尝试清除不存在的数据。攻击者可利用该漏洞导致PHP崩溃。
Severity
中
Patch Name
PHP空指针解引用漏洞的补丁
Patch Description
PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHPGroup和开放源代码社区的共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。 PHP存在空指针解引用漏洞。该漏洞源于在使用文件上传功能时，如果启用了上传进度跟踪，但是session.upload_progress.cleanup设置为0（禁用），且文件上传失败时，上传进程会尝试清除不存在的数据。攻击者可利用该漏洞导致PHP崩溃。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://bugs.php.net/bug.php?id=79221

Reference
https://nvd.nist.gov/vuln/detail/CVE-2020-7062
Impacted products
Name
['PHP PHP 7.2.*，<7.2.28', 'PHP PHP 7.3.*，<7.3.15', 'PHP PHP 7.4.*，<7.4.3']
Show details on source website
To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7062",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-7062"
    }
  },
  "description": "PHP\uff08PHP\uff1aHypertext Preprocessor\uff0cPHP\uff1a\u8d85\u6587\u672c\u9884\u5904\u7406\u5668\uff09\u662fPHPGroup\u548c\u5f00\u653e\u6e90\u4ee3\u7801\u793e\u533a\u7684\u5171\u540c\u7ef4\u62a4\u7684\u4e00\u79cd\u5f00\u6e90\u7684\u901a\u7528\u8ba1\u7b97\u673a\u811a\u672c\u8bed\u8a00\u3002\u8be5\u8bed\u8a00\u4e3b\u8981\u7528\u4e8eWeb\u5f00\u53d1\uff0c\u652f\u6301\u591a\u79cd\u6570\u636e\u5e93\u53ca\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nPHP\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u4f7f\u7528\u6587\u4ef6\u4e0a\u4f20\u529f\u80fd\u65f6\uff0c\u5982\u679c\u542f\u7528\u4e86\u4e0a\u4f20\u8fdb\u5ea6\u8ddf\u8e2a\uff0c\u4f46\u662fsession.upload_progress.cleanup\u8bbe\u7f6e\u4e3a0\uff08\u7981\u7528\uff09\uff0c\u4e14\u6587\u4ef6\u4e0a\u4f20\u5931\u8d25\u65f6\uff0c\u4e0a\u4f20\u8fdb\u7a0b\u4f1a\u5c1d\u8bd5\u6e05\u9664\u4e0d\u5b58\u5728\u7684\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4PHP\u5d29\u6e83\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://bugs.php.net/bug.php?id=79221",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-14698",
  "openTime": "2020-02-29",
  "patchDescription": "PHP\uff08PHP\uff1aHypertext Preprocessor\uff0cPHP\uff1a\u8d85\u6587\u672c\u9884\u5904\u7406\u5668\uff09\u662fPHPGroup\u548c\u5f00\u653e\u6e90\u4ee3\u7801\u793e\u533a\u7684\u5171\u540c\u7ef4\u62a4\u7684\u4e00\u79cd\u5f00\u6e90\u7684\u901a\u7528\u8ba1\u7b97\u673a\u811a\u672c\u8bed\u8a00\u3002\u8be5\u8bed\u8a00\u4e3b\u8981\u7528\u4e8eWeb\u5f00\u53d1\uff0c\u652f\u6301\u591a\u79cd\u6570\u636e\u5e93\u53ca\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nPHP\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u4f7f\u7528\u6587\u4ef6\u4e0a\u4f20\u529f\u80fd\u65f6\uff0c\u5982\u679c\u542f\u7528\u4e86\u4e0a\u4f20\u8fdb\u5ea6\u8ddf\u8e2a\uff0c\u4f46\u662fsession.upload_progress.cleanup\u8bbe\u7f6e\u4e3a0\uff08\u7981\u7528\uff09\uff0c\u4e14\u6587\u4ef6\u4e0a\u4f20\u5931\u8d25\u65f6\uff0c\u4e0a\u4f20\u8fdb\u7a0b\u4f1a\u5c1d\u8bd5\u6e05\u9664\u4e0d\u5b58\u5728\u7684\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4PHP\u5d29\u6e83\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": "PHP\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "PHP PHP 7.2.*\uff0c\u003c7.2.28",
      "PHP PHP 7.3.*\uff0c\u003c7.3.15",
      "PHP PHP 7.4.*\uff0c\u003c7.4.3"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-7062",
  "serverity": "\u4e2d",
  "submitTime": "2020-02-28",
  "title": "PHP\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • 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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.