CVE-2019-0047

Junos OS: Persistent XSS vulnerability in J-Web

HIGH

8.8

CVSS Score

Published: October 9, 2019 at 07:26 PM UTC

Updated: June 17, 2026 at 02:07 AM UTC

1 product affected across 1 vendorJunos

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Severity

HIGH8.8

Exploit prediction

EPSS 2%

Description

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.

Affected

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

Junos · Juniper Networks

95%

12.1X46 ≤ v < 12.1X46-D8612.3 ≤ v < 12.3R12-S1312.3X48 ≤ v < 12.3X48-D8014.1X53 ≤ v < 14.1X53-D5115.1 ≤ v < 15.1F6-S13, 15.1R7-S415.1X49 ≤ v < 15.1X49-D171, 15.1X49-D18015.1X53 ≤ v < 15.1X53-D497, 15.1X53-D6916.1 ≤ v < 16.1R7-S516.2 ≤ v < 16.2R2-S917.1 ≤ v < 17.1R317.2 ≤ v < 17.2R1-S8, 17.2R2-S7, 17.2R3-S117.3 ≤ v < 17.3R3-S617.4 ≤ v < 17.4R1-S7, 17.4R2-S4, 17.4R318.1 ≤ v < 18.1R3-S518.2 ≤ v < 18.2R1-S5, 18.2R2-S3, 18.2R318.3 ≤ v < 18.3R1-S3, 18.3R2, 18.3R318.4 ≤ v < 18.4R1-S2, 18.4R212.1X4612.1x4612.1x46 d10 12.1x46 d15 12.1x46 d2012.1x46 d2512.1x46 d30 12.1x46 d35 12.1x46 d40 12.1x46 d45 12.1x46 d50 12.1x46 d55 12.1x46 d73 12.3 12.3 r1 12.3 r11 12.3 r12 12.3 r2 12.3 r3 12.3 r4 12.3 r5 12.3 r6 12.3 r7 12.3 r8 12.3 r9 12.3X4812.3x4812.3x48 d10 12.3x48 d15 12.3x48 d25 12.3x48 d30 12.3x48 d35 12.3x48 d40 12.3x48 d45 12.3x48 d50 12.3x48 d55 12.3x48 d60 12.3x48 d65 12.3x48 d70 12.3x48 d75 14.1X5314.1x5314.1x53 d10 14.1x53 d15 14.1x53 d16 14.1x53 d25 14.1x53 d26 14.1x53 d27 14.1x53 d30 14.1x53 d35 14.1x53 d40 14.1x53 d4514.1x53 d4714.1x53 d48 14.1x53 d49 15.1 15.1 f1 15.1 f2 15.1 f2-s1 15.1 f2-s2 15.1 f2-s3 15.1 f2-s4 15.1 f3 15.1 f4 15.1 f5 15.1 f6 15.1 f6-s3 15.1 r1 15.1 r2 15.1 r3 15.1 r4 15.1 r4-s9 15.1 r5 15.1 r6 15.1 r6-s6 15.1 r7-s1 15.1 r7-s2 15.1 r7-s3 15.1X49 15.1X53 15.1x49 d10 15.1x49 d100 15.1x49 d110 15.1x49 d120 15.1x49 d130 15.1x49 d140 15.1x49 d150 15.1x49 d160 15.1x49 d170 15.1x49 d20 15.1x49 d30 15.1x49 d35 15.1x49 d40 15.1x49 d45 15.1x49 d50 15.1x49 d55 15.1x49 d60 15.1x49 d65 15.1x49 d70 15.1x49 d75 15.1x49 d80 15.1x49 d90 15.1x53 d20 15.1x53 d21 15.1x53 d210 15.1x53 d230 15.1x53 d231 15.1x53 d23215.1x53 d23315.1x53 d234 15.1x53 d235 15.1x53 d236 15.1x53 d237 15.1x53 d25 15.1x53 d30 15.1x53 d31 15.1x53 d32 15.1x53 d33 15.1x53 d34 15.1x53 d40 15.1x53 d45 15.1x53 d470 15.1x53 d495 15.1x53 d56 15.1x53 d60 15.1x53 d61 15.1x53 d62 15.1x53 d63 15.1x53 d64 15.1x53 d65 15.1x53 d6615.1x53 d6715.1x53 d68 15.1x53 d70 16.1 16.1 r1 16.1 r2 16.1 r3 16.1 r3-s10 16.1 r4 16.1 r5-s4 16.1 r6-s1 16.1 r7 16.1 r7-s4 16.2 16.2 r1 16.2 r2 16.2 r2-s1 16.2 r2-s2 16.2 r2-s5 16.2 r2-s6 16.2 r2-s7 16.2 r2-s8 17.1 17.1 r1 17.1 r2-s1 17.1 r2-s10 17.1 r2-s2 17.1 r2-s3 17.1 r2-s4 17.1 r2-s5 17.1 r2-s6 17.1 r2-s7 17.2 17.2 r1-s2 17.2 r1-s4 17.2 r1-s7 17.2 r2-s6 17.3 17.3 r2 17.3 r2-s1 17.3 r2-s2 17.3 r3-s1 17.3 r3-s2 17.3 r3-s3 17.3 r3-s4 17.4 17.4 r1 17.4 r1-s1 17.4 r1-s2 17.4 r1-s4 17.4 r1-s6 17.4 r2 17.4 r2-s1 17.4 r2-s3 18.1 18.1 r2 18.1 r2-s1 18.1 r2-s2 18.1 r2-s4 18.1 r3 18.1 r3-s2 18.1 r3-s3 18.1 r3-s4 18.2 18.2 r2-s1 18.2 r2-s2 18.3 18.3 r1 18.3 r1-s1 18.3 r1-s2 18.4 18.4 r1

Affected range stops below 12.1X46-D86, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.3R12-S13, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.3X48-D80, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1X53-D51, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1F6-S13, 15.1R7-S4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X49-D171, 15.1X49-D180, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X53-D497, 15.1X53-D69, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.1R7-S5, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.2R2-S9, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.1R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.2R1-S8, 17.2R2-S7, 17.2R3-S1, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.3R3-S6, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.4R1-S7, 17.4R2-S4, 17.4R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 18.1R3-S5, so it looks safe — our inference, not a vendor statement

Affected range stops below 18.2R1-S5, 18.2R2-S3, 18.2R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 18.3R1-S3, 18.3R2, 18.3R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 18.4R1-S2, 18.4R2, 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/JSA10970

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://kb.juniper.net/JSA10970

CVSS

8.8HIGHjuniper

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-79

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