Уязвимость сохранения данных и слежки за пользователем при использовании IndexedDB в режиме приватного просмотра в Mozilla Firefox
Описание
При использовании режима приватного просмотра злоумышленник способен заставить веб-воркер записывать постоянные данные в IndexedDB и уникально идентифицировать пользователя. IndexedDB не должна быть доступна в режиме приватного просмотра, и записанные данные сохраняются между несколькими сессиями режима приватного просмотра, поскольку они не удаляются при выходе.
Затронутые версии ПО
- Firefox ESR версий ниже 52.5.2
- Firefox версий ниже 57.0.1
Тип уязвимости
- Утечка информации
- Подмена / слежка за пользователем
Ссылки
- Issue TrackingThird Party AdvisoryVDB Entry
- Third Party AdvisoryVDB Entry
- Third Party AdvisoryVDB Entry
- Third Party Advisory
- ExploitIssue TrackingThird Party Advisory
- Third Party Advisory
- Third Party Advisory
- Vendor Advisory
- Vendor Advisory
- Issue TrackingThird Party AdvisoryVDB Entry
- Third Party AdvisoryVDB Entry
- Third Party AdvisoryVDB Entry
- Third Party Advisory
- ExploitIssue TrackingThird Party Advisory
- Third Party Advisory
- Third Party Advisory
- Vendor Advisory
- Vendor Advisory
Уязвимые конфигурации
Одно из
Одно из
EPSS
7.5 High
CVSS3
5 Medium
CVSS2
Дефекты
Связанные уязвимости
When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.
When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.
When Private Browsing mode is used, it is possible for a web worker to ...
When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.
EPSS
7.5 High
CVSS3
5 Medium
CVSS2