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

2019-12-1300:55:15

CWE-61

GitHub_M

www.cve.org

7.7 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

7.7 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.8%

JSON

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.

CNA Affected

[
  {
    "product": "cli",
    "vendor": "npm",
    "versions": [
      {
        "lessThan": "6.13.3",
        "status": "affected",
        "version": "< 6.13.3",
        "versionType": "custom"
      }
    ]
  }
]