CVE-2021-23434

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.

Summary:

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.

Reference Links(if available):

  • https://github.com/mariocasciaro/object-path/commit/7bdf4abefd102d16c163d633e8994ef154cab9eb
  • https://github.com/mariocasciaro/object-path%230116
  • https://snyk.io/vuln/SNYK-JS-OBJECTPATH-1569453
  • https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1570423
  • CVSS Score (if available)

    v2: / MEDIUMAV:N/AC:L/Au:N/C:P/I:P/A:P

    v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

    Links to Exploits(if available)