CVE-2019-16776— 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 CLI是美国npm公司的一款软件包管理器。 npm CLI 6.13.3之前版本中存在路径遍历漏洞。攻击者可借助package.json文件的bin字段利用该漏洞访问node_modules文件夹之外的文件夹。
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I. Basic Information for CVE-2019-16776
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 fails to prevent access to folders outside of the intended node_modules folder through the bin field. A properly constructed entry in the package.json bin field would allow a package publisher to modify and/or gain access 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
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
npm CLI 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
npm CLI是美国npm公司的一款软件包管理器。 npm CLI 6.13.3之前版本中存在路径遍历漏洞。攻击者可借助package.json文件的bin字段利用该漏洞访问node_modules文件夹之外的文件夹。
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
II. Public POCs for CVE-2019-16776
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Vendor Advisories for CVE-2019-16776 (7)
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https://github.com/npm/cli/security/advisories/GHSA-x8qc-rrcw-4r46 x_refsource_CONFIRM
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https://www.oracle.com/security-alerts/cpujan2020.html x_refsource_MISC
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Mailing List Discussions for CVE-2019-16776 (1)
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http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00027.html vendor-advisory x_refsource_SUSE
Security Blog Posts for CVE-2019-16776 (1)
Same Patch Batch · npm · 2019-12-13 · 3 CVEs total
| CVE-2019-16775 | 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 |
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V. Comments for CVE-2019-16776
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