CVE-2016-4923

Junos J-Web: Cross Site Scripting Vulnerability

HIGH

CVSS Score

Published: October 13, 2017 at 05:00 PM UTC

Updated: June 17, 2026 at 12:48 AM UTC

1 product affected across 1 vendorJunos

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Severity

HIGH8

Exploit prediction

EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Junos · Juniper Networks

95%

v < 11.4R13-S3v < 12.1X44-D60v < 12.1X46-D40v < 12.1X47-D30v < 12.3R11v < 12.3X48-D20v < 13.2X51-D39v < 13.3R9v < 14.1R6v < 14.2R6v < 15.1R3v < 15.1X49-D20v < 15.1X53-D5711.4 11.4 r1 11.4 r10 11.4 r11 11.4 r12 11.4 r2 11.4 r3 11.4 r4 11.4 r5 11.4 r6 11.4 r7 11.4 r8 11.4 r9 11.4r13 s2 12.1x44 12.1x44 d10 12.1x44 d15 12.1x44 d20 12.1x44 d25 12.1x44 d30 12.1x44 d35 12.1x44 d40 12.1x44 d45 12.1x44 d50 12.1x44 d5512.1x4612.1x46 d10 12.1x46 d15 12.1x46 d2012.1x46 d2512.1x46 d30 12.1x46 d35 12.1x47 12.1x47 d10 12.1x47 d15 12.1x47 d20 12.1x47 d25 12.3 12.3 r1 12.3 r10 12.3 r2 12.3 r3 12.3 r4 12.3 r5 12.3 r6 12.3 r7 12.3 r8 12.3 r9 12.3x48 d10 12.3x48 d15 13.3 13.3 r1 13.3 r2 13.3 r2-s2 13.3 r3 13.3 r4 13.3 r5 13.3 r6 13.3 r7 13.3 r8 13.3 r9 14.1 14.1 r1 14.1 r2 14.1 r3 14.1 r4 14.1 r5 14.2 r1 14.2 r2 14.2 r3 14.2 r4 14.2 r5 15.1 r1 15.1 r2 15.1x49 d10 15.1x53 d20 15.1x53 d21 15.1x53 d25 15.1x53 d30 15.1x53 d32 15.1x53 d33 15.1x53 d34 15.1x53 d50 15.1x53 d51 15.1x53 d52 15.1x53 d55

Affected range stops below 11.4R13-S3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1X44-D60, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1X46-D40, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1X47-D30, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.3R11, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.3X48-D20, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.2X51-D39, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.3R9, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1R6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.2R6, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X49-D20, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X53-D57, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://kb.juniper.net/JSA10764

References (2)

VDB Entryx_refsource_BIDThird Party Advisory

Source: [email protected]

http://www.securityfocus.com/bid/93529

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://kb.juniper.net/JSA10764

CVSS

8HIGHjuniper

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-79

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