Medium · published January 14, 2025
A path traversal vulnerability exists in rsync. It stems from behavior enabled by the `--inc-recursive` option, a default-enabled option for many client options and can be enabled by the server even if not explicitly enabled by the client. When using the `--inc-recursive` option, a lack of proper symlink verification coupled with deduplication checks occurring on a per-file-list basis could allow a server to write files outside of the client's intended destination directory. A malicious server could write malicious files to arbitrary locations named after valid directories/paths on the client.
| Product | Versions | Fixed in |
|---|---|---|
| samba/rsync | ≤ 3.3.0 | — |
| almalinux/almalinux | all versions | — |
| almalinux/almalinux | all versions | — |
| almalinux/almalinux | all versions | — |
| archlinux/arch_linux | all versions | — |
| gentoo/linux | all versions | — |
| nixos/nixos | < 24.11 | 24.11 |
| suse/suse_linux | all versions | — |
| tritondatacenter/smartos | < 20250123 | 20250123 |
| redhat/enterprise_linux | all versions | — |
| redhat/enterprise_linux | all versions | — |
| redhat/enterprise_linux_eus | all versions | — |
| redhat/enterprise_linux_for_arm_64 | all versions | — |
| redhat/enterprise_linux_for_arm_64 | all versions | — |
| redhat/enterprise_linux_for_arm_64_eus | all versions | — |
| redhat/enterprise_linux_for_ibm_z_systems | all versions | — |
| redhat/enterprise_linux_for_ibm_z_systems | all versions | — |
| redhat/enterprise_linux_for_ibm_z_systems_eus | all versions | — |
| redhat/enterprise_linux_for_power_little_endian | all versions | — |
| redhat/enterprise_linux_for_power_little_endian | all versions | — |
| redhat/enterprise_linux_for_power_little_endian_eus | all versions | — |
| redhat/enterprise_linux_server_aus | all versions | — |
| redhat/enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions | all versions | — |
| redhat/enterprise_linux_update_services_for_sap_solutions | all versions | — |