Design/Logic Flaw

On boot, the Pillar eve container checks for the existence and content of “/config/authorizedkeys”. If the file is present, and contains a supported public key, the container will go on to open port 22 and enable sshd with the given keys as the authorized keys for root login. An attacker could...

CVE-2023-43633 Debug Functions Unlockable Without Triggering Measured Boot

On boot, the Pillar eve container checks for the existence and content of “/config/GlobalConfig/global.json”. If the file exists, it overrides the existing configuration on the device on boot. This allows an attacker to change the system’s configuration, which also includes some debug functions...

PT-2023-28890

Name of the Vulnerable Software and Affected Versions Zededa affected versions not specified Description The issue arises from a change in the configuration partition measurement from PCR 13 to PCR 14, without updating the list of PCRs used for sealing and unsealing the "vault" key. This makes th...

CVE-2023-43634: Insufficiently Protected Credentials

When sealing/unsealing the “vault” key, a list of PCRs is used, which defines which PCRs are used. In a previous project, CYMOTIVE found that the configuration is not protected by the secure boot, and in response Zededa implemented measurements on the config partition that was mapped to PCR 13. I...

CVE-2023-43636

In EVE OS, the “measured boot” mechanism prevents a compromised device from accessing the encrypted data located in the vault. As per the “measured boot” design, the PCR values calculated at different stages of the boot process will change if any of their respective parts are changed. This...

Design/Logic Flaw

In EVE OS, the “measured boot” mechanism prevents a compromised device from accessing the encrypted data located in the vault. As per the “measured boot” design, the PCR values calculated at different stages of the boot process will change if any of their respective parts are changed. This...

CVE-2023-43636 Rootfs Not Protected

In EVE OS, the “measured boot” mechanism prevents a compromised device from accessing the encrypted data located in the vault. As per the “measured boot” design, the PCR values calculated at different stages of the boot process will change if any of their respective parts are changed. This...

CVE-2023-43636 Rootfs Not Protected

In EVE OS, the “measured boot” mechanism prevents a compromised device from accessing the encrypted data located in the vault. As per the “measured boot” design, the PCR values calculated at different stages of the boot process will change if any of their respective parts are changed. This...