CVE-2018-11319 : Exploit Details and Defense Strategies

Syntastic (also known as vim-syntastic) version 3.9.0 and below has a vulnerability that could allow an attacker to execute arbitrary code by exploiting the way it handles searches for configuration files.

Understanding CVE-2018-11319

This CVE entry describes a security vulnerability in Syntastic (vim-syntastic) versions 3.9.0 and below that could be exploited by an attacker to execute arbitrary code.

What is CVE-2018-11319?

Syntastic (vim-syntastic) versions 3.9.0 and below mishandle searches for configuration files, potentially allowing an attacker to execute arbitrary code using a malicious gcc plugin.

The Impact of CVE-2018-11319

The incorrect handling of configuration file searches in Syntastic versions 3.9.0 and below could be exploited by an attacker with write access to a higher directory in the hierarchy, leading to arbitrary code execution.

Technical Details of CVE-2018-11319

This section provides more technical insights into the vulnerability.

Vulnerability Description

Syntastic (vim-syntastic) versions 3.9.0 and below incorrectly search for configuration files, starting from the current directory up to the root, potentially allowing an attacker to execute arbitrary code.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Syntastic (vim-syntastic) version 3.9.0 and below

Exploitation Mechanism

An attacker with write access to a directory higher in the hierarchy than the project's base directory could exploit this vulnerability using a malicious gcc plugin.
Exploitation becomes more challenging after version 3.8.0 due to potential filename prediction requirements.

Mitigation and Prevention

Protecting systems from CVE-2018-11319 involves taking immediate steps and implementing long-term security practices.

Immediate Steps to Take

Update Syntastic to a version beyond 3.9.0 to mitigate the vulnerability.
Monitor for any signs of unauthorized access or malicious activity.

Long-Term Security Practices

Regularly update software and plugins to the latest versions.
Implement access controls to limit write access to critical directories.

Patching and Updates

Apply patches provided by the vendor to address the vulnerability.