CVE-2023-25152 : Vulnerability Insights and Analysis

A symbolic link (symlink) following vulnerability has been identified in github.com/pterodactyl/wings, assigned CVE-2023-25152. This vulnerability can lead to improper link resolution before file access, potentially allowing attackers to manipulate resource allocations, elevate container privileges, or gain access to a remote shell on the target machine.

Understanding CVE-2023-25152

This section delves into the details of the CVE-2023-25152 vulnerability and its potential impact.

What is CVE-2023-25152?

The vulnerability exists in the Wings server control plane, specifically in versions prior to

v1.7.3

and between

v1.11.0

and

v1.11.3

. It can be exploited by attackers to create new files and directories on the host system, even altering resource allocations and gaining unauthorized access.

The Impact of CVE-2023-25152

The impact of this vulnerability is categorized as high, with a score of 8.4 in the CVSSv3.1 scoring system. It can lead to a high availability impact and confidentiality impact, while integrity impact is rated low. The attack complexity is considered high, with the attack vector being through the network.

Technical Details of CVE-2023-25152

Here, we explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability allows attackers to manipulate file structures on the host system, potentially gaining unauthorized access and control over containers. It requires an existing "server" controlled by the Wings Daemon for exploitation.

Affected Systems and Versions

The vulnerability impacts versions of the Pterodactyl Wings control plane prior to

v1.7.3

and between

v1.11.0

and

v1.11.3

. Systems running these versions are vulnerable to exploitation.

Exploitation Mechanism

Attackers can leverage the vulnerability to create new files and directories on the host system, potentially altering resource allocations, escalating container privileges, or gaining remote shell access.

Mitigation and Prevention

To safeguard systems from CVE-2023-25152, immediate steps should be taken, complemented with long-term security practices and patching procedures.

Immediate Steps to Take

Upgrade affected systems running

v1.11.x

to version

v1.11.3

and those on

v1.7.x

to version

v1.7.3

. This will address the vulnerability and protect against potential exploitation.

Long-Term Security Practices

Implement best security practices, such as regular security audits, ensuring timely software updates, and monitoring for any unusual system activities or unauthorized access attempts.

Patching and Updates

Stay vigilant for security updates released by the vendor. Regularly apply patches and updates to ensure systems are protected against known vulnerabilities, including CVE-2023-25152.