Learn about CVE-2023-29056, a vulnerability in Lenovo XClarity Controller that defaults valid LDAP users to read-only permissions. Find impact details, technical description, and mitigation steps here.
A valid LDAP user, under specific conditions, will default to read-only permissions when authenticating into XCC controller. Learn about the impact, technical details, and mitigation strategies related to this CVE.
Understanding CVE-2023-29056
This section provides insights into the nature and implications of the CVE-2023-29056 vulnerability.
What is CVE-2023-29056?
CVE-2023-29056 involves a scenario where a valid LDAP user can default to read-only permissions when logging into the XCC controller. For this vulnerability to be exploitable, XCC must be configured to utilize an LDAP server for Authentication/Authorization, and the login permission attribute must be left undefined.
The Impact of CVE-2023-29056
The impact of this vulnerability is rated as medium severity. It has low confidentiality impact and no integrity impact. The attack complexity is low, and the attack vector is through the network, affecting the availability of the system.
Technical Details of CVE-2023-29056
Here we delve into the technical specifics of CVE-2023-29056.
Vulnerability Description
A valid LDAP user logging into XCC under specific conditions defaults to read-only permissions due to misconfiguration involving the use of an LDAP server and undefined login permission attribute.
Affected Systems and Versions
The vulnerability affects Lenovo's XClarity Controller. Users should refer to the mitigation strategy provided in LEN-118321 for resolving the issue.
Exploitation Mechanism
The vulnerability is exploitable by a valid LDAP user if XCC is set to use an LDAP server for Authentication/Authorization and the login permission attribute is not defined.
Mitigation and Prevention
This section outlines the steps to mitigate and prevent exploitation of CVE-2023-29056.
Immediate Steps to Take
Customers are advised to update to the specified version of Lenovo XClarity Controller (XCC) recommended in the related Lenovo Product Security Advisory LEN-118321.
Long-Term Security Practices
Implement proper privilege management practices to avoid similar issues and regularly monitor and update authentication configurations.
Patching and Updates
Ensure timely installation of security patches and updates released by Lenovo to address known vulnerabilities.