CVE-2019-16777 Arbitrary File Overwrite in npm CLI

2019-12-1301:00:21

CWE-22

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

7.5 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

56.6%

JSON

Versions of the npm CLI prior to 6.13.4 are vulnerable to an Arbitrary File Overwrite. It fails to prevent existing globally-installed binaries to be overwritten by other package installations. For example, if a package was installed globally and created a serve binary, any subsequent installs of packages that also create a serve binary would overwrite the previous serve binary. This behavior is still allowed in local installations and also through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option.

CNA Affected

[
  {
    "product": "cli",
    "vendor": "npm",
    "versions": [
      {
        "lessThan": "6.13.4",
        "status": "affected",
        "version": "< 6.13.4",
        "versionType": "custom"
      }
    ]
  }
]