high
8
CWE
79
Advisory Published
Updated

CVE-2016-4923: Junos J-Web: Cross Site Scripting Vulnerability

First published: Wed Oct 12 2016(Updated: )

Insufficient cross site scripting protection in J-Web component in Juniper Networks Junos OS may potentially allow a remote unauthenticated user to inject web script or HTML and steal sensitive data and credentials from a J-Web session and to perform administrative actions on the Junos device. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.1X44 prior to 12.1X44-D60; 12.1X46 prior to 12.1X46-D40; 12.1X47 prior to 12.1X47-D30; 12.3 prior to 12.3R11; 12.3X48 prior to 12.3X48-D20; 13.2X51 prior to 13.2X51-D39, 13.2X51-D40; 13.3 prior to 13.3R9; 14.1 prior to 14.1R6; 14.2 prior to 14.2R6; 15.1 prior to 15.1R3; 15.1X49 prior to 15.1X49-D20; 15.1X53 prior to 15.1X53-D57.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Juniper Junos=11.4
Juniper Junos=11.4-r1
Juniper Junos=11.4-r10
Juniper Junos=11.4-r11
Juniper Junos=11.4-r12
Juniper Junos=11.4-r2
Juniper Junos=11.4-r3
Juniper Junos=11.4-r4
Juniper Junos=11.4-r5
Juniper Junos=11.4-r6
Juniper Junos=11.4-r7
Juniper Junos=11.4-r8
Juniper Junos=11.4-r9
Juniper Junos=11.4r13-s2
Juniper Junos=12.3
Juniper Junos=12.3-r1
Juniper Junos=12.3-r10
Juniper Junos=12.3-r2
Juniper Junos=12.3-r3
Juniper Junos=12.3-r4
Juniper Junos=12.3-r5
Juniper Junos=12.3-r6
Juniper Junos=12.3-r7
Juniper Junos=12.3-r8
Juniper Junos=12.3-r9
Juniper Junos=12.3x48-d10
Juniper Junos=12.3x48-d15
Juniper Junos=13.3
Juniper Junos=13.3-r1
Juniper Junos=13.3-r2
Juniper Junos=13.3-r2-s2
Juniper Junos=13.3-r3
Juniper Junos=13.3-r4
Juniper Junos=13.3-r5
Juniper Junos=13.3-r6
Juniper Junos=13.3-r7
Juniper Junos=13.3-r8
Juniper Junos=13.3-r9
Juniper Junos=14.1
Juniper Junos=14.1-r1
Juniper Junos=14.1-r2
Juniper Junos=14.1-r3
Juniper Junos=14.1-r4
Juniper Junos=14.1-r5
Juniper Junos=14.2-r1
Juniper Junos=14.2-r2
Juniper Junos=14.2-r3
Juniper Junos=14.2-r4
Juniper Junos=14.2-r5
Juniper Junos=15.1-r1
Juniper Junos=15.1-r2
Juniper Junos=15.1x49-d10
Juniper Junos=15.1x53-d20
Juniper Junos=15.1x53-d21
Juniper Junos=15.1x53-d25
Juniper Junos=15.1x53-d30
Juniper Junos=15.1x53-d32
Juniper Junos=15.1x53-d33
Juniper Junos=15.1x53-d34
Juniper Junos=15.1x53-d50
Juniper Junos=15.1x53-d51
Juniper Junos=15.1x53-d52
Juniper Junos=15.1x53-d55
Juniper Junos=12.1x44
Juniper Junos=12.1x44-d10
Juniper Junos=12.1x44-d15
Juniper Junos=12.1x44-d20
Juniper Junos=12.1x44-d25
Juniper Junos=12.1x44-d30
Juniper Junos=12.1x44-d35
Juniper Junos=12.1x44-d40
Juniper Junos=12.1x44-d45
Juniper Junos=12.1x44-d50
Juniper Junos=12.1x44-d55
Juniper Junos=12.1x46
Juniper Junos=12.1x46-d10
Juniper Junos=12.1x46-d15
Juniper Junos=12.1x46-d20
Juniper Junos=12.1x46-d25
Juniper Junos=12.1x46-d30
Juniper Junos=12.1x46-d35
Juniper Junos=12.1x47
Juniper Junos=12.1x47-d10
Juniper Junos=12.1x47-d15
Juniper Junos=12.1x47-d20
Juniper Junos=12.1x47-d25

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-4923?

    The severity of CVE-2016-4923 is classified as high primarily due to its potential to allow unauthorized access and data theft.

  • How do I fix CVE-2016-4923?

    To fix CVE-2016-4923, update your Junos OS to the latest version that includes the security patch.

  • What types of attacks does CVE-2016-4923 enable?

    CVE-2016-4923 enables remote attackers to conduct cross site scripting (XSS) attacks, potentially leading to credential theft and unauthorized actions.

  • Which versions of Junos OS are affected by CVE-2016-4923?

    CVE-2016-4923 affects multiple versions of Junos OS including 11.4, 12.3, 13.3, and 14.1 series.

  • Can CVE-2016-4923 be exploited remotely?

    Yes, CVE-2016-4923 can be exploited remotely by unauthenticated users through the vulnerable J-Web component.

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