It was discovered that the Subiquity installer for Ubuntu Server logged the LUKS full disk encryption password if one was entered.
Weakness
The product writes sensitive information to a log file.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Subiquity | Canonical | * | 20.05.2 (excluding) |
| Subiquity | Ubuntu | bionic | * |
| Subiquity | Ubuntu | eoan | * |
| Subiquity | Ubuntu | esm-apps/bionic | * |
| Subiquity | Ubuntu | esm-apps/focal | * |
| Subiquity | Ubuntu | esm-apps/jammy | * |
| Subiquity | Ubuntu | focal | * |
| Subiquity | Ubuntu | groovy | * |
| Subiquity | Ubuntu | hirsute | * |
| Subiquity | Ubuntu | impish | * |
| Subiquity | Ubuntu | jammy | * |
| Subiquity | Ubuntu | kinetic | * |
| Subiquity | Ubuntu | snap | * |
| Subiquity | Ubuntu | trusty | * |
| Subiquity | Ubuntu | upstream | * |
Potential Mitigations
Related Attack Patterns
References
- https://aliceandbob.company/the-human-factor-in-an-economy-of-scale/
- https://github.com/CanonicalLtd/subiquity/commit/7db70650feaf513d7fb6f1ca07f2d670a0890613
- https://aliceandbob.company/the-human-factor-in-an-economy-of-scale/
- https://github.com/CanonicalLtd/subiquity/commit/7db70650feaf513d7fb6f1ca07f2d670a0890613