Sudo Vulnerability in Chroot Mode Affects Local User Access

CVE-2025-32463

What is CVE-2025-32463?

CVE-2025-32463 is a significant vulnerability found in the Sudo software, which is widely utilized in Unix-like operating systems to allow users to run programs with the security privileges of another user, typically the superuser. This particular flaw is associated with the software's chroot mode, which provides an isolated environment for executing commands. The vulnerability arises from the improper handling of the /etc/nsswitch.conf file sourced from a directory controlled by the user when using the --chroot option. This misconfiguration can inadvertently permit local users to gain root access, thereby bypassing essential security controls and compromising the integrity of the system.

The implications of this vulnerability are especially concerning for organizations that rely on Sudo for user management and privilege escalation. If exploited, it could lead to unauthorized administrative access, allowing malicious actors to manipulate system settings, access sensitive data, or even deploy further attacks within the network.

Potential Impact of CVE-2025-32463

1. Unauthorized Root Access: Local users can exploit this vulnerability to achieve root privileges, enabling them to execute arbitrary commands with full administrative rights, potentially leading to severe security breaches.

2. System Compromise: By gaining root access, an attacker can manipulate critical system files, install malicious software, or modify system configurations to maintain persistence and control over the compromised system.

3. Data Leakage and Manipulation: The ability to operate with elevated privileges could result in unauthorized access to sensitive data, leading to data breaches, loss of confidentiality, and potential regulatory repercussions for organizations.

News Articles

Help Net Security

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