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Time-of-check Time-of-use (TOCTOU) Race Condition

CVE-2023-44128

Medium
5/10

Summary

he vulnerability is to delete arbitrary files in LGInstallService ("com.lge.lginstallservies") app. The app contains the exported "com.lge.lginstallservies.InstallService" service that exposes an AIDL interface. All its "installPackage*" methods are finally calling the "installPackageVerify()" method that performs signature validation after the delete file method. An attacker can control conditions so this security check is never performed and an attacker-controlled file is deleted.

  • LOW
  • LOCAL
  • NONE
  • CHANGED
  • REQUIRED
  • NONE
  • LOW
  • LOW

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state.

References

Advisory Timeline

  • Published