CVE-2022-31254 : Exploit Details and Defense Strategies
Learn about CVE-2022-31254, an Incorrect Default Permissions vulnerability in SUSE Linux Enterprise Server, allowing local attackers to escalate privileges from _rmt to root.
A vulnerability in the rmt-server-regsharing service of SUSE Linux Enterprise Server for SAP 15, SUSE Manager Server 4.1, and openSUSE Leap 15.3/15.4 allows local attackers to escalate privileges from the '_rmt' user to root.
Understanding CVE-2022-31254
This CVE describes an Incorrect Default Permissions vulnerability that affects multiple versions of different products under SUSE and openSUSE.
What is CVE-2022-31254?
CVE-2022-31254 relates to a security issue in the rmt-server-regsharing service that could be exploited by local attackers to elevate their privileges to root level.
The Impact of CVE-2022-31254
The vulnerability poses a high-risk threat as it allows unauthorized local users with '_rmt' access to escalate privileges, potentially leading to full system compromise.
Technical Details of CVE-2022-31254
This section provides detailed insights into the vulnerability.
Vulnerability Description
The vulnerability stems from incorrect default permissions in the rmt-server service, enabling local attackers to perform privilege escalation to root.
Affected Systems and Versions
The affected products include SUSE Linux Enterprise Server for SAP 15, SUSE Manager Server 4.1, openSUSE Leap 15.3, and openSUSE Leap 15.4 with rmt-server versions prior to 2.10.
Exploitation Mechanism
Attackers with access to the '_rmt' user account can exploit this vulnerability to gain root privileges on the affected systems.
Mitigation and Prevention
To mitigate the risks associated with CVE-2022-31254, follow the below practices.
Immediate Steps to Take
Users are advised to update the rmt-server versions to 2.10 or later to address this vulnerability and prevent unauthorized privilege escalation.
Long-Term Security Practices
Implement least privilege access policies and regularly monitor and audit user permissions to prevent similar privilege escalation attacks.
Patching and Updates
Regularly monitor vendor security advisories and apply security patches promptly to protect systems from known vulnerabilities.