CVE-2019-6326 Explained : Impact and Mitigation
Learn about CVE-2019-6326, a Buffer Overflow vulnerability in HP Color LaserJet Pro M280-M281 and HP LaserJet Pro MFP M28-M31 Printer series. Find out the impact, affected systems, and mitigation steps.
A Buffer Overflow vulnerability exists in the embedded web server attributes of HP Color LaserJet Pro M280-M281 Multifunction Printer series and HP LaserJet Pro MFP M28-M31 Printer series.
Understanding CVE-2019-6326
This CVE identifies a potential Buffer Overflow vulnerability in specific HP printer series.
What is CVE-2019-6326?
Buffer Overflow is a type of vulnerability that occurs when a program writes more data to a block of memory, or buffer, than it can hold, potentially leading to a system crash or unauthorized code execution.
The Impact of CVE-2019-6326
The vulnerability could allow attackers to execute arbitrary code, disrupt the printer's functionality, or potentially gain unauthorized access to the device.
Technical Details of CVE-2019-6326
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability affects HP Color LaserJet Pro M280-M281 Multifunction Printer series (before v. 20190419) and HP LaserJet Pro MFP M28-M31 Printer series (before v. 20190426) due to potential Buffer Overflow in their embedded web server attributes.
Affected Systems and Versions
- HP Color LaserJet Pro M280-M281 Multifunction Printer series (before v. 20190419)
- HP LaserJet Pro MFP M28-M31 Printer series (before v. 20190426)
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted requests to the affected web server, triggering the Buffer Overflow condition.
Mitigation and Prevention
Protecting systems from CVE-2019-6326 is crucial to maintaining security.
Immediate Steps to Take
- Apply security patches provided by HP to update the firmware of the affected printers.
- Implement network segmentation to isolate the printers from potentially malicious actors.
Long-Term Security Practices
- Regularly monitor and update firmware and software on all network-connected devices.
- Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
HP has released patches to address the vulnerability. Ensure timely installation of these patches to mitigate the risk of exploitation.