In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user. NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo as a user not present in the local password database is an intentional feature. Because this behavior surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default being disabled. However, this does not change the fact that sudo was behaving as intended, and as documented, in earlier versions
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Sudo | Sudo | * | 1.8.29 (including) |
| Red Hat Enterprise Linux 8 | RedHat | sudo-0:1.8.29-5.el8 | * |
| Sudo | Ubuntu | devel | * |
| Sudo | Ubuntu | disco | * |
| Sudo | Ubuntu | focal | * |
| Sudo | Ubuntu | trusty | * |
| Sudo | Ubuntu | upstream | * |