CVE-2021-23438 Information

Description

This affects the package mpath before 0.8.4. A type confusion vulnerability can lead to a bypass of CVE-2018-16490. In particular the condition ignoreProperties.indexOf(parts[i]) !== -1 returns -1 if parts[i] is [’proto’]. This is because the method that has been called if the input is an array is Array.prototype.indexOf() and not String.prototype.indexOf(). They behave differently depending on the type of the input.

CVSS Vector

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

Reference

https://github.com/aheckmann/mpath/commit/89402d2880d4ea3518480a8c9847c541f2d824fc https://snyk.io/vuln/SNYK-JS-MPATH-1577289 https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579548

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8