7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.014 Low
EPSS
Percentile
86.5%
Exploit tool for CVE-2023-4911, targeting the ‘Looney Tunables’ glibc vulnerability in various Linux distributions.
LooneyPwner is a proof-of-concept (PoC) exploit tool targeting the critical buffer overflow vulnerability, nicknamed “Looney Tunables,” found in the GNU C Library (glibc). This flaw, officially tracked as CVE-2023-4911, is present in various Linux distributions, posing significant risks, including unauthorized data access and system alterations.
The vulnerability in the GNU C Library (glibc) was disclosed last week, with notable security researchers and analysts releasing PoC exploits, indicating the potential for widespread attacks. The flaw, discovered by Qualys researchers, can grant attackers root privileges on various Linux distributions including Fedora, Ubuntu, and Debian.
Unauthorized root access provides attackers unrestricted authority, enabling them to:
LooneyPwner exploits the “Looney Tunables” flaw, targeting affected glibc versions. The tool:
chmod +x looneypwner.sh
./looneypwner.sh
This tool is intended for educational purposes and security research only. The user assumes all responsibility for any damages or misuse resulting from its use.
This exploit code is based on the work of leesh3288. A big thanks to him for the foundational work on the exploit.