CVE-2025-2157 identifies a security flaw in Red Hat Satellite Server versions 6.16 and 6.17 related to insecure storage of sensitive information. The vulnerability arises from improper file permissions on temporary files created under the /var/tmp directory. These files contain outputs of sensitive commands, including critical system files like /etc/shadow, which stores hashed user passwords. Because the permissions are too permissive, low-privileged operating system users can monitor and access these temporary files, leading to unauthorized disclosure of sensitive data. This exposure can facilitate privilege escalation attacks if an attacker leverages the disclosed information to gain higher system privileges. The vulnerability requires local access with low privileges but does not require user interaction, making it a local information disclosure issue with potential for further exploitation. The CVSS 3.1 base score is 3.3, reflecting low severity due to the limited attack vector (local), low complexity, and limited impact on confidentiality only, without integrity or availability impact. No known exploits have been reported in the wild, but the flaw poses a risk in environments where multiple users share access or where attackers can gain initial low-level access. The issue highlights the importance of strict file permission management on temporary files that may contain sensitive data in enterprise infrastructure management tools like Red Hat Satellite Server.

The primary impact of this vulnerability is unauthorized disclosure of sensitive information, such as password hashes from /etc/shadow, which can be leveraged for offline password cracking or further privilege escalation. In multi-tenant or shared environments, this could allow attackers with low-level access to escalate privileges or move laterally within the network. Although the vulnerability requires local access, the exposure of sensitive data can undermine system confidentiality and trust. Organizations relying on Red Hat Satellite Server for managing large Linux deployments could face increased risk of insider threats or attackers exploiting initial footholds. While the direct impact on system integrity and availability is minimal, the potential for privilege escalation increases the overall risk profile. The absence of known exploits reduces immediate threat but does not eliminate future exploitation risk, especially in environments with weak internal access controls.

Organizations should immediately verify and correct file permissions on temporary files under /var/tmp used by Red Hat Satellite Server to ensure that only authorized users can access sensitive command outputs. Applying vendor-provided patches or updates as soon as they become available is critical. Until patches are released, administrators can implement stricter OS-level access controls, such as using SELinux policies or AppArmor profiles to restrict access to /var/tmp files created by Satellite Server processes. Monitoring and auditing access to /var/tmp and sensitive files like /etc/shadow can help detect suspicious activity. Limiting the number of users with local access to Satellite Server hosts reduces the attack surface. Additionally, employing multi-factor authentication and strong password policies can mitigate the risk of privilege escalation even if password hashes are exposed. Regular security reviews of file permission configurations and temporary file handling in enterprise management tools are recommended to prevent similar issues.