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CVE-2019-16775— Unauthorized File Access in npm CLI before before version 6.13.3

Quick assessment

Affected
npm cli
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NPM npm CLI是美国NPM公司的一款软件包管理器。 npm CLI 6.13.3之前版本中存在后置链接漏洞。该漏洞源于网络系统或产品未正确过滤表示非预期资源的链接或者快捷方式的文件名。攻击者可利用该漏洞访问非法的文件路径。

CVSS 7.7 · High EPSS 3.33% · P88
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I. Basic Information for CVE-2019-16775

Vulnerability Information
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Vulnerability Title
Unauthorized File Access in npm CLI before before version 6.13.3
Source: CVE Program / CVE List V5
Vulnerability Description
Versions of the npm CLI prior to 6.13.3 are vulnerable to an Arbitrary File Write. It is possible for packages to create symlinks to files outside of thenode_modules folder through the bin field upon installation. A properly constructed entry in the package.json bin field would allow a package publisher to create a symlink pointing to arbitrary files on a user's system when the package is installed. This behavior is still possible through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
NPM npm CLI 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NPM npm CLI是美国NPM公司的一款软件包管理器。 npm CLI 6.13.3之前版本中存在后置链接漏洞。该漏洞源于网络系统或产品未正确过滤表示非预期资源的链接或者快捷方式的文件名。攻击者可利用该漏洞访问非法的文件路径。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
npm cli < 6.13.3 ~ 6.13.3 -

II. Public POCs for CVE-2019-16775

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III. Intelligence Information for CVE-2019-16775

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Vendor Advisories for CVE-2019-16775 (8)

Mailing List Discussions for CVE-2019-16775 (1)

Security Blog Posts for CVE-2019-16775 (1)

Same Patch Batch · npm · 2019-12-13 · 3 CVEs total

CVE-2019-16776 7.7 HIGH Unauthorized File Access in npm CLI before before version 6.13.3
CVE-2019-16777 7.7 HIGH Arbitrary File Overwrite in npm CLI

IV. Related Vulnerabilities

Same product: cli
Same vendor: npm
Same weakness: CWE-61

V. Comments for CVE-2019-16775

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