Описание
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware hashes and encrypts passwords using a hardcoded cryptographic key in sal_util_str_encrypt() in libsal.so.0.0. The parameters (salt, IV, and key data) are used to encrypt and decrypt all passwords using AES256 in CBC mode. With the parameters known, all previously encrypted passwords can be decrypted. This includes the passwords that are part of configuration backups or otherwise embedded as part of the firmware.
Ссылки
- ExploitThird Party Advisory
- Vendor Advisory
- ExploitThird Party Advisory
- Vendor Advisory
Уязвимые конфигурации
Одновременно
Одновременно
Одновременно
Одновременно
Одновременно
Одновременно
Одновременно
Одновременно
Одновременно
EPSS
5.9 Medium
CVSS3
4.3 Medium
CVSS2
Дефекты
Связанные уязвимости
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware hashes and encrypts passwords using a hardcoded cryptographic key in sal_util_str_encrypt() in libsal.so.0.0. The parameters (salt, IV, and key data) are used to encrypt and decrypt all passwords using AES256 in CBC mode. With the parameters known, all previously encrypted passwords can be decrypted. This includes the passwords that are part of configuration backups or otherwise embedded as part of the firmware.
Уязвимость функции sal_util_str_encrypt() (libsal.so) микропрограммного обеспечения маршрутизаторов Zyxel серии GS1900, позволяющая нарушителю раскрыть защищаемую информацию
EPSS
5.9 Medium
CVSS3
4.3 Medium
CVSS2