PT-2021-15524 · Mpath · Mpath

Alessio Della Libera · Published 2021-09-01 · Updated 2021-09-10 · CVE-2021-23438

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions mpath versions prior to 0.8.4

Description A type confusion issue exists, potentially allowing a bypass. The condition ignoreProperties.indexOf(parts[i]) !== -1 returns -1 if parts[i] is [' proto '], due to differences in behavior between Array.prototype.indexOf() and String.prototype.indexOf() depending on the input type.

Recommendations For versions prior to 0.8.4, update to version 0.8.4 or later to resolve the issue.

Exploit

Fix

Type Confusion

Weakness Enumeration

CWE-843

Related Identifiers

CVE-2021-23438

GHSA-P92X-R36W-9395

SNYK-JAVA-ORGWEBJARSNPM-1579548

SNYK-JS-MPATH-1577289

Affected Products

Mpath

References · 9

• 🔥 https://snyk.io/vuln/SNYK-JS-MPATH-1577289 · Exploit
• 🔥 https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579548 · Exploit
• https://github.com/aheckmann/mpath/commit/89402d2880d4ea3518480a8c9847c541f2d824fc · Patch
• https://osv.dev/vulnerability/GHSA-p92x-r36w-9395 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-23438 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-23438 · Security Note
• https://github.com/aheckmann/mpath · Note
• https://github.com/mongoosejs/mpath/commit/89402d2880d4ea3518480a8c9847c541f2d824fc · Note
• https://t.me/cvenotify/20558 · Telegram Post