CVE-2023-35887 : Vulnerability Insights and Analysis
Learn about CVE-2023-35887, a vulnerability in Apache MINA SSHD allowing unauthorized actors to access sensitive information beyond the rooted tree. Upgrade to version 2.10 for mitigation.
This article provides detailed information about CVE-2023-35887, a vulnerability in Apache MINA SSHD that could lead to the exposure of sensitive information to unauthorized actors.
Understanding CVE-2023-35887
CVE-2023-35887 is a security vulnerability identified in Apache MINA SSHD, affecting versions from 1.0 to 2.10. The vulnerability allows logged users to discover sensitive information outside the rooted tree in SFTP servers implemented using Apache MINA SSHD.
What is CVE-2023-35887?
CVE-2023-35887, also known as 'Exposure of Sensitive Information to an Unauthorized Actor' vulnerability, enables users to access information beyond the rooted tree by exploiting parent navigation paths ("..") or involving symlinks. Upgrading to version 2.10 is recommended to mitigate this issue.
The Impact of CVE-2023-35887
The vulnerability poses a medium severity risk with a CVSS base score of 5. It allows unauthorized actors to obtain sensitive information, potentially compromising the confidentiality of the data.
Technical Details of CVE-2023-35887
The following technical details shed light on the vulnerability:
Vulnerability Description
CVE-2023-35887 is categorized under CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'). It affects Apache MINA SSHD versions from 1.0 to 2.10.
Affected Systems and Versions
The vulnerability impacts SFTP servers using Apache MINA SSHD version 1.0 to 2.10 that employ a RootedFileSystem configuration.
Exploitation Mechanism
Logged users can exploit the vulnerability by traversing parent paths or utilizing symlinks to access information outside the rooted tree.
Mitigation and Prevention
Protecting systems against CVE-2023-35887 involves implementing the following strategies:
Immediate Steps to Take
It is advised to upgrade Apache MINA SSHD to version 2.10 to address the vulnerability and prevent unauthorized access to sensitive information.
Long-Term Security Practices
Maintaining strong access controls, regularly monitoring file system interactions, and educating users on secure file management practices are essential for long-term security.
Patching and Updates
Stay informed about security updates and patches released by Apache Software Foundation to ensure the timely mitigation of vulnerabilities.