Описание
In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.
Ссылки
- Mailing ListPatchThird Party Advisory
- ExploitIssue TrackingPatchVendor Advisory
- Mailing ListThird Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party Advisory
- PatchVendor Advisory
- PatchVendor Advisory
- Mailing ListPatchThird Party Advisory
- ExploitIssue TrackingPatchVendor Advisory
- Mailing ListThird Party Advisory
- Third Party Advisory
- Third Party Advisory
Уязвимые конфигурации
Одно из
Одно из
Одно из
EPSS
7.8 High
CVSS3
7 High
CVSS3
6.9 Medium
CVSS2
Дефекты
Связанные уязвимости
In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.
In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.
PHP-FPM memory access in root process leading to privilege escalation
In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 a ...
EPSS
7.8 High
CVSS3
7 High
CVSS3
6.9 Medium
CVSS2