Описание
A Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the cp utility of uutils coreutils allows an attacker to bypass no-dereference intent. The utility checks if a source path is a symbolic link using path-based metadata but subsequently opens it without the O_NOFOLLOW flag. An attacker with concurrent write access can swap a regular file for a symbolic link during this window, causing a privileged cp process to copy the contents of arbitrary sensitive files into a destination controlled by the attacker.
Ссылки
- ExploitIssue TrackingVendor Advisory
- ExploitIssue TrackingVendor Advisory
Уязвимые конфигурации
EPSS
4.7 Medium
CVSS3
Дефекты
Связанные уязвимости
A Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the cp utility of uutils coreutils allows an attacker to bypass no-dereference intent. The utility checks if a source path is a symbolic link using path-based metadata but subsequently opens it without the O_NOFOLLOW flag. An attacker with concurrent write access can swap a regular file for a symbolic link during this window, causing a privileged cp process to copy the contents of arbitrary sensitive files into a destination controlled by the attacker.
A Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the cp utilit ...
EPSS
4.7 Medium
CVSS3