cve/2021/CVE-2021-23434.md

CVE-2021-23434

Description

This affects the package object-path before 0.11.6. A type confusion vulnerability can lead to a bypass of CVE-2020-15256 when the path components used in the path parameter are arrays. In particular, the condition currentPath === 'proto' returns false if currentPath is ['proto']. This is because the === operator returns always false when the type of the operands is different.

POC

Reference

• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1570423
• https://snyk.io/vuln/SNYK-JS-OBJECTPATH-1569453

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/Live-Hack-CVE/CVE-2021-23434
• https://github.com/dellalibera/dellalibera