CVE-2019-14305 : What You Need to Know
Discover multiple buffer overflows in Ricoh printers parsing HTTP settings for Wi-Fi, mDNS, POP3, SMTP, and alerts, allowing attackers to launch denial of service attacks or execute code.
Multiple buffer overflows in various Ricoh printers can lead to denial of service attacks or arbitrary code execution.
Understanding CVE-2019-14305
What is CVE-2019-14305?
Multiple buffer overflows have been discovered in various Ricoh printers while parsing HTTP parameter settings related to Wi-Fi, mDNS, POP3, SMTP, and notification alerts. These vulnerabilities can be exploited by malicious individuals to launch denial of service attacks or execute arbitrary code by sending specifically crafted requests to the printer's web server.
The Impact of CVE-2019-14305
The CVSS v3.0 base score for this vulnerability is 8.8, indicating a high severity level. The attack complexity is low, but the impact on availability, confidentiality, and integrity is high. Privileges required for exploitation are low, and user interaction is not necessary.
Technical Details of CVE-2019-14305
Vulnerability Description
The vulnerability arises from multiple buffer overflows in Ricoh printers when processing HTTP parameter settings related to Wi-Fi, mDNS, POP3, SMTP, and notification alerts.
Affected Systems and Versions
- Affected firmware versions vary depending on the printer model.
- Examples of affected configurations include:
- Ricoh SP C250DN firmware up to (including) 1.06
- Ricoh SP C252DN
- Ricoh SP C250SF firmware up to (including) 1.12
- Ricoh SP C252SF
Exploitation Mechanism
- Attackers can exploit these vulnerabilities by sending specifically crafted requests to the printer's web server, causing denial of service or executing arbitrary code.
Mitigation and Prevention
Immediate Steps to Take
- Update firmware to the latest version provided by Ricoh.
- Implement network segmentation to limit access to vulnerable devices.
- Monitor network traffic for any suspicious activity targeting printers.
Long-Term Security Practices
- Regularly update and patch all network-connected devices.
- Conduct security assessments and penetration testing to identify and address vulnerabilities.
Patching and Updates
- Ricoh may release patches or firmware updates to address these vulnerabilities. Stay informed through Ricoh's official support channels.