CVE-2019-0047: Junos OS: Persistent XSS vulnerability in J-Web
A persistent Cross-Site Scripting (XSS) vulnerability in Junos OS J-Web interface may allow remote unauthenticated attackers to perform administrative actions on the Junos device. Successful exploitation requires a Junos administrator to first perform certain diagnostic actions on J-Web. This issue affects: Juniper Networks Junos OS 12.1X46 versions prior to 12.1X46-D86; 12.3 versions prior to 12.3R12-S13; 12.3X48 versions prior to 12.3X48-D80; 14.1X53 versions prior to 14.1X53-D51; 15.1 versions prior to 15.1F6-S13, 15.1R7-S4; 15.1X49 versions prior to 15.1X49-D171, 15.1X49-D180; 15.1X53 versions prior to 15.1X53-D497, 15.1X53-D69; 16.1 versions prior to 16.1R7-S5; 16.2 versions prior to 16.2R2-S9; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R2-S7, 17.2R3-S1; 17.3 versions prior to 17.3R3-S6; 17.4 versions prior to 17.4R1-S7, 17.4R2-S4, 17.4R3; 18.1 versions prior to 18.1R3-S5; 18.2 versions prior to 18.2R1-S5, 18.2R2-S3, 18.2R3; 18.3 versions prior to 18.3R1-S3, 18.3R2, 18.3R3; 18.4 versions prior to 18.4R1-S2, 18.4R2.
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Frequently Asked Questions
What is the severity of CVE-2019-0047?
CVE-2019-0047 has a high severity rating due to its potential for exploitation by remote unauthenticated attackers.
How do I fix CVE-2019-0047?
To remediate CVE-2019-0047, update your Junos OS to a version that includes the security patch provided by Juniper Networks.
Which Junos OS versions are affected by CVE-2019-0047?
CVE-2019-0047 affects Junos OS versions 12.1x46 through 18.4.
Can CVE-2019-0047 lead to unauthorized access?
Yes, successful exploitation of CVE-2019-0047 may allow attackers to perform administrative actions without authentication.
Is there a workaround for CVE-2019-0047?
While patching is the recommended solution, restricting access to the J-Web interface can serve as a temporary workaround.