GTFO · Tool

tac

3 techniquesLinuxGTFOBinsGPL-3.0

file-read

File ReadPrivilege EscalationLinux

Make sure that `RANDOM` does not appear into the file to read otherwise the content of the file is corrupted by reversing the order of `RANDOM`-separated chunks.

tac -s 'RANDOM' /path/to/input-file

Evidence: Upstream reference
Environment: Local host
Compatibility: Linux reference. macOS compatibility has not been checked for this command and execution context.
Context: sudo
Native: file-read
MITRE: T1005
Refs: gtfobins.github.io/gtfobins/tac/

file-read

File ReadPrivilege EscalationLinux

Make sure that `RANDOM` does not appear into the file to read otherwise the content of the file is corrupted by reversing the order of `RANDOM`-separated chunks.

tac -s 'RANDOM' /path/to/input-file

Evidence: Upstream reference
Environment: Local host
Compatibility: Linux reference. macOS compatibility has not been checked for this command and execution context.
Context: suid
Native: file-read
MITRE: T1005
Refs: gtfobins.github.io/gtfobins/tac/

file-read

File ReadLinux

Make sure that `RANDOM` does not appear into the file to read otherwise the content of the file is corrupted by reversing the order of `RANDOM`-separated chunks.

tac -s 'RANDOM' /path/to/input-file

Evidence: Upstream reference
Environment: Local host
Compatibility: Linux reference. macOS compatibility has not been checked for this command and execution context.
Context: unprivileged
Native: file-read
MITRE: T1005
Refs: gtfobins.github.io/gtfobins/tac/