ftpd in linux-ftpd 0.17, and possibly other versions, performs a chdir before setting the UID, which allows local users to bypass intended access restrictions by redirecting their home directory to a restricted directory.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Linux-ftpd-ssl | Linux-ftpd-ssl | 0.17 (including) | 0.17 (including) |
Linux-ftpd | Ubuntu | dapper | * |
Linux-ftpd | Ubuntu | devel | * |
Linux-ftpd | Ubuntu | edgy | * |
Linux-ftpd | Ubuntu | feisty | * |
Linux-ftpd | Ubuntu | gutsy | * |
Linux-ftpd | Ubuntu | hardy | * |
Linux-ftpd | Ubuntu | intrepid | * |
Linux-ftpd | Ubuntu | jaunty | * |
Linux-ftpd | Ubuntu | karmic | * |