CVE-2017-18123 : Security Advisory and Response

DokuWiki versions up to 2017-02-19e are affected by a reflected file download vulnerability that allows remote attackers to execute arbitrary programs through improper encoding of user input in the call parameter of /lib/exe/ajax.php.

Understanding CVE-2017-18123

This CVE entry highlights a security issue in DokuWiki that could lead to remote code execution.

What is CVE-2017-18123?

The vulnerability in DokuWiki versions up to 2017-02-19e arises from the improper encoding of user input in the call parameter of /lib/exe/ajax.php, enabling attackers to run arbitrary programs.

The Impact of CVE-2017-18123

This vulnerability allows remote attackers to exploit the improper encoding of user input to execute arbitrary programs, posing a significant security risk to affected systems.

Technical Details of CVE-2017-18123

Dive deeper into the technical aspects of this CVE entry.

Vulnerability Description

The call parameter of /lib/exe/ajax.php in DokuWiki through 2017-02-19e does not properly encode user input, leading to a reflected file download vulnerability.

Affected Systems and Versions

Product: DokuWiki
Vendor: N/A
Versions affected: Up to 2017-02-19e

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating user input in the call parameter of /lib/exe/ajax.php to execute arbitrary programs.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2017-18123.

Immediate Steps to Take

Update DokuWiki to a patched version that addresses the reflected file download vulnerability.
Implement input validation mechanisms to prevent malicious user input.

Long-Term Security Practices

Regularly monitor security mailing lists and vendor announcements for updates and patches.
Conduct security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Apply security patches provided by DokuWiki promptly to mitigate the risk of exploitation.