CVE-2017-8799 : Exploit Details and Defense Strategies

CVE-2017-8799 was published on May 5, 2017, and relates to a vulnerability in iRODS versions prior to 4.1.11 and 4.2.1 that allows the execution of remote shell commands through igetwild. This could potentially be exploited by various iRODS users, including anonymous ones.

Understanding CVE-2017-8799

This CVE entry highlights a security flaw in iRODS software that could lead to the execution of unauthorized remote commands.

What is CVE-2017-8799?

The vulnerability in iRODS versions before 4.1.11 and 4.2.1 enables users to execute remote shell commands by manipulating virtual iRODS pathnames using the igetwild command. This could be abused by malicious actors to run arbitrary commands on the affected system.

The Impact of CVE-2017-8799

The exploitation of this vulnerability could result in unauthorized remote command execution by leveraging virtual iRODS pathnames, potentially allowing attackers to compromise the system and access sensitive information.

Technical Details of CVE-2017-8799

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The flaw allows users to execute remote shell commands by utilizing virtual iRODS pathnames through the igetwild command in iRODS versions prior to 4.1.11 and 4.2.1.

Affected Systems and Versions

All iRODS versions before 4.1.11 and 4.2.1

Exploitation Mechanism

Malicious actors retrieve a virtual iRODS pathname containing a semicolon using igetwild
The portion of the pathname following the semicolon is executed within the user's shell as igetwild is a Bash script

Mitigation and Prevention

Protecting systems from CVE-2017-8799 involves taking immediate and long-term security measures.

Immediate Steps to Take

Update iRODS to versions 4.1.11 or 4.2.1 to mitigate the vulnerability
Monitor and restrict access to the affected systems

Long-Term Security Practices

Regularly update and patch iRODS software to address security vulnerabilities
Implement strong access controls and authentication mechanisms to prevent unauthorized access

Patching and Updates

Apply patches and updates provided by iRODS to fix the vulnerability and enhance system security