Symlink attack due to predictable tmp folder names

Affecting npm package, versions <1.3.3

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Overview

npm is a package manager for JavaScript. Affected versions of the package are vulnerable to Symlink attack due to predictable tmp folder names, which were named /tmp/npm-$PID. An attacker waiting for a process named npm- to load could then go to the folder and arbitrarily change the files in the tmp folder.

Remediation

Upgrade npm to version 1.3.3 or higher.

References

CVSS Score

3.6
medium severity
  • Attack Vector
    Local
  • Attack Complexity
    High
  • Privileges Required
    Low
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    Low
  • Availability
    Low
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Credit
Daniel Kahn Gillmor
CVE
CVE-2013-4116 CVE-2017-16017
CWE
CWE-377
Snyk ID
npm:npm:20130708
Disclosed
07 Jul, 2013
Published
13 Feb, 2017