CVE-2020-1607 : Vulnerability Insights and Analysis
Understand CVE-2020-1607, a critical XSS vulnerability in J-Web of Junos OS, allowing attackers to inject scripts, hijack sessions, and perform unauthorized actions. Learn about affected systems, impacts, and mitigation steps.
This CVE-2020-1607 pertains to an Insufficient Cross-Site Scripting (XSS) protection vulnerability in J-Web of Junos OS, potentially allowing remote attackers to inject malicious scripts or HTML.
Understanding CVE-2020-1607
This vulnerability affects several versions of Juniper Networks Junos OS across different platforms.
What is CVE-2020-1607?
CVE-2020-1607 highlights a critical XSS security flaw in the J-Web interface of Junos OS that could enable unauthorized users to hijack sessions and execute administrative tasks on affected devices.
The Impact of CVE-2020-1607
The XSS vulnerability in J-Web could lead to the following consequences:
- Injection of malicious web scripts or HTML
- Session hijacking of the J-Web interface
- Execution of administrative actions on Junos devices
Technical Details of CVE-2020-1607
This section outlines the technical specifics of the vulnerability.
Vulnerability Description
The XSS flaw in J-Web lacks adequate protection, paving the way for unauthorized script injection and session manipulation.
Affected Systems and Versions
Numerous Junos OS versions and platforms are susceptible to this XSS vulnerability, including SRX Series, EX and QFX Series, QFX5200/QFX5110 Series, and EX2300/EX3400 Series.
Exploitation Mechanism
The vulnerability exploits the lack of XSS protection in J-Web to inject malicious scripts, seize control of user sessions, and perform unauthorized administrative tasks.
Mitigation and Prevention
To protect systems from CVE-2020-1607, certain measures need to be implemented.
Immediate Steps to Take
- Limit J-Web access to trusted hosts to prevent unauthorized script injections
- Consider deploying jump hosts without internet access
- Alternatively, disable the J-Web service altogether
Long-Term Security Practices
- Regularly update Junos OS to the patched versions listed in the solutions
- Review and enhance XSS protection mechanisms in web interfaces
Patching and Updates
The resolution for CVE-2020-1607 includes updates to the following software releases and subsequent versions: 12.3R12-S15, 12.3X48-D86, 12.3X48-D90, 14.1X53-D51, and more.