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CVE-2017-6920

Quick assessment

Affected
Drupal.org Drupal Core
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Drupal是Drupal社区所维护的一套用PHP语言开发的免费、开源的内容管理系统。 Drupal 8.0.0版本至8.3.4之前版本中存在远程代码执行漏洞，该漏洞源于PECL YAML解析器没有安全的处理PHP对象。远程攻击者可利用该漏洞在受影响应用程序上下文中执行任意代码或造成拒绝服务。

AI Predicted 9.8 Difficulty: Easy EPSS 15.56% · P97
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I. Basic Information for CVE-2017-6920

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Drupal core 8 before versions 8.3.4 allows remote attackers to execute arbitrary code due to the PECL YAML parser not handling PHP objects safely during certain operations.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Drupal 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Drupal是Drupal社区所维护的一套用PHP语言开发的免费、开源的内容管理系统。 Drupal 8.0.0版本至8.3.4之前版本中存在远程代码执行漏洞，该漏洞源于PECL YAML解析器没有安全的处理PHP对象。远程攻击者可利用该漏洞在受影响应用程序上下文中执行任意代码或造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Drupal.org Drupal Core 8 prior to 8.3.4 -

II. Public POCs for CVE-2017-6920

# POC Description Source Link Shenlong Link
1 None https://github.com/Threekiii/Awesome-POC/blob/master/CMS%E6%BC%8F%E6%B4%9E/Drupal%20Core%208%20PECL%20YAML%20%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96%E4%BB%BB%E6%84%8F%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C%E6%BC%8F%E6%B4%9E%20CVE-2017-6920.md POC Details
2 https://github.com/vulhub/vulhub/blob/master/drupal/CVE-2017-6920/README.md POC Details
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III. Intelligence Information for CVE-2017-6920

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Vendor Advisories for CVE-2017-6920 (2)

Other References for CVE-2017-6920 (1)

IV. Related Vulnerabilities

Same product: Drupal Core
Same vendor: Drupal.org

V. Comments for CVE-2017-6920

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