CVE-2019-0060 : What You Need to Know
Learn about CVE-2019-0060, a critical vulnerability in Juniper Networks Junos OS affecting SRX Series devices, leading to a Denial of Service condition. Find out the impacted systems, exploitation details, and mitigation steps.
A vulnerability in Juniper Networks Junos OS on SRX Series devices could lead to a Denial of Service (DoS) condition due to a flowd process crash when processing specific IP packets through IPSec tunnels.
Understanding CVE-2019-0060
This CVE involves a critical issue in Junos OS that affects the flowd process on SRX Series devices, potentially causing a DoS situation.
What is CVE-2019-0060?
The vulnerability triggers a crash in the flowd process on SRX Series gateways when handling certain transit IP packets within IPSec tunnels, posing a risk of prolonged DoS if the packets persist.
The Impact of CVE-2019-0060
The vulnerability could result in a Denial of Service scenario on systems with IPSec tunnel configurations, potentially disrupting network traffic and services.
Technical Details of CVE-2019-0060
This section delves into the specifics of the vulnerability, including affected systems, exploitation mechanisms, and mitigation strategies.
Vulnerability Description
The flaw in the flowd process of Junos OS on SRX Series devices causes crashes when processing specific IP packets in IPSec tunnels, leading to potential DoS incidents.
Affected Systems and Versions
- Junos OS versions 15.1X49-D171, 15.1X49-D180 on SRX Series
- Junos OS versions 18.2R2-S1 to 18.2R3 on SRX Series
- Junos OS versions 18.4 to 18.4R2 on SRX Series
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Availability Impact: High
- Privileges Required: None
- CVSS Base Score: 7.5 (High)
- CWE-755: Improper Handling of Exceptional Conditions
Mitigation and Prevention
To address CVE-2019-0060, immediate actions and long-term security practices are crucial.
Immediate Steps to Take
- Update affected Junos OS versions to 15.1X49-D171, 15.1X49-D180, 18.2R3, 18.4R2, 19.1R1, or later releases
Long-Term Security Practices
- Regularly monitor and apply software updates and patches
- Implement network segmentation and access controls to limit exposure
Patching and Updates
- Juniper Networks has released software updates to resolve the vulnerability