### #CobblerExploit #UnauthorizedAccess #CVE202447533
Summary: A critical vulnerability in Cobbler servers, tracked as CVE-2024-47533, allows unauthorized access and control, enabling attackers to manipulate system configurations. The flaw, present in versions 3.0.0 and later, bypasses authentication, exposing sensitive data to potential exploitation.
Threat Actor: Unknown | unknown
Victim: Cobbler Users | Cobbler Users
Key Point :
- CVSS score of 9.8 indicates the severity of the vulnerability.
- The get_shared_secret() function flaw allows attackers to bypass authentication entirely.
- Successful exploitation can lead to full control over the Cobbler server, including configuration manipulation and data access.
- A proof-of-concept exploit demonstrates the vulnerability’s ease of exploitation using Python.
- Users are advised to update to patched versions 3.3.7 or 3.2.3 to mitigate the risk.
CVE-2024-47533 exposes Cobbler servers to unauthorized access and control, enabling attackers to manipulate system configurations.
A critical vulnerability has been discovered in Cobbler, a popular Linux installation server used for network-based deployments. The vulnerability, tracked as CVE-2024-47533 and assigned a CVSS score of 9.8, allows unauthorized attackers to gain full control of Cobbler servers.
Vulnerability Details
The vulnerability stems from a flaw in the get_shared_secret() function within the Cobbler code. This function is responsible for generating and managing a shared secret used for authentication between the Cobbler server and its clients, including the web interface and command-line interface (CLI).
Due to an error introduced in Cobbler versions 3.0.0 and later, the get_shared_secret() function always returns a fixed value (-1) instead of a unique secret. This effectively bypasses authentication, allowing anyone to connect to the Cobbler server’s XML-RPC interface as the user "" with the password -1.
Impact and Exploitation
Successful exploitation grants attackers complete control over the Cobbler server. They can manipulate system configurations, deploy malicious software, and potentially gain access to sensitive data.
A proof-of-concept (PoC) exploit has been published, demonstrating the ease with which the vulnerability can be exploited. The PoC utilizes Python code to connect to the Cobbler server’s XML-RPC interface using the vulnerable credentials.
Affected Versions
Cobbler versions 3.0.0 and later are affected by this vulnerability.
Remediation
Users of affected Cobbler versions are strongly urged to update their installations to the latest patched versions: 3.3.7 or 3.2.3.