Description
KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the username, occurs due to insufficient bounds checking and input sanitization (at line 2600). This allows an attacker to overwrite adjacent memory, which leads to arbitrary code execution.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- KiTTY 0.76.1.13 - 'Start Duplicated Session Username' Buffer Overflow EDB-51891 · local · Mar 14, 2024
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://packetstormsecurity.com/files/177032/KiTTY-0.76.1.13-Buffer-Overflows.html
- http://packetstormsecurity.com/files/177031/KiTTY-0.76.1.13-Command-Injection.html
- https://blog.defcesco.io/CVE-2024-25003-CVE-2024-25004
- 20240213 Command Injection Vulnerability in KiTTY Get Remote File Through SCP Input (CVE-2024-23749) mailing-list
- 20240213 Buffer Overflow Vulnerabilities in KiTTY Start Duplicated Session Hostname (CVE-2024-25003) & Username (CVE-2024-25004) Variables mailing-list