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CVE-2019-6339— PHAR stream wrapper Arbitrary PHP code execution

Quick assessment

Affected
Drupal 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 core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 core 7.62之前的7.x版本、8.6.6之前的8.6.x版本和8.5.9之前的8.5.x版本中的内置phar stream wrapper（PHP）存在远程代码执行漏洞。远程攻击者可利用该漏洞执行任意的php代码。

AI Predicted 5.9 Difficulty: Moderate EPSS 35.58% · P98
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I. Basic Information for CVE-2019-6339

Vulnerability Information
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Vulnerability Title
PHAR stream wrapper Arbitrary PHP code execution
Source: CVE Program / CVE List V5
Vulnerability Description
In Drupal Core versions 7.x prior to 7.62, 8.6.x prior to 8.6.6 and 8.5.x prior to 8.5.9; A remote code execution vulnerability exists in PHP's built-in phar stream wrapper when performing file operations on an untrusted phar:// URI. Some Drupal code (core, contrib, and custom) may be performing file operations on insufficiently validated user input, thereby being exposed to this vulnerability. This vulnerability is mitigated by the fact that such code paths typically require access to an administrative permission or an atypical configuration.
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 core 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Drupal core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 core 7.62之前的7.x版本、8.6.6之前的8.6.x版本和8.5.9之前的8.5.x版本中的内置phar stream wrapper（PHP）存在远程代码执行漏洞。远程攻击者可利用该漏洞执行任意的php代码。
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 Drupal core 7.x ~ 7.62 -

II. Public POCs for CVE-2019-6339

# POC Description Source Link Shenlong Link
1 Drupal remote code execution vulnerabilty https://github.com/Vulnmachines/drupal-cve-2019-6339 POC Details
2 None https://github.com/Threekiii/Awesome-POC/blob/master/CMS%E6%BC%8F%E6%B4%9E/Drupal%20%E8%BF%9C%E7%A8%8B%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C%E6%BC%8F%E6%B4%9E%20CVE-2019-6339.md POC Details
3 https://github.com/vulhub/vulhub/blob/master/drupal/CVE-2019-6339/README.md POC Details
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III. Intelligence Information for CVE-2019-6339

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Vendor Advisories for CVE-2019-6339 (1)

Mailing List Discussions for CVE-2019-6339 (1)

Other References for CVE-2019-6339 (1)

Same Patch Batch · Drupal · 2019-01-22 · 4 CVEs total

CVE-2017-6922 Files uploaded by anonymous users into a private file system can be accessed by other anon
CVE-2019-6338 third-party PEAR Archive_Tar library updates
CVE-2017-6923 Access bypass in Drupal 8 views

IV. Related Vulnerabilities

Same product: Drupal core
Same vendor: Drupal

V. Comments for CVE-2019-6339

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