Published:2020/01/10 Last Updated:2020/01/10
JVN#21753370
Junos OS vulnerable to cross-site scripting
Overview
Junos OS provided by Juniper Networks, Inc. contains a cross-site scripting vulnerability.
Products Affected
- Junos OS 12.3 versions prior to 12.3R12-S15 on EX and QFX Series
- Junos OS 12.3X48 versions prior to 12.3X48-D86, 12.3X48-D90 on SRX Series
- Junos OS 14.1X53 versions prior to 14.1X53-D51 on EX and QFX Series
- Junos OS 15.1F6 versions prior to 15.1F6-S13
- Junos OS 15.1 versions prior to 15.1R7-S5
- Junos OS 15.1X49 versions prior to 15.1X49-D181, 15.1X49-D190 on SRX Series
- Junos OS 15.1X53 versions prior to 15.1X53-D238 on QFX5200/QFX5110 Series
- Junos OS 15.1X53 versions prior to 15.1X53-D592 on EX2300/EX3400 Series
- Junos OS 16.1 versions prior to 16.1R4-S13, 16.1R7-S5
- Junos OS 16.2 versions prior to 16.2R2-S10
- Junos OS 17.1 versions prior to 17.1R2-S11, 17.1R3-S1
- Junos OS 17.2 versions prior to 17.2R1-S9, 17.2R3-S2
- Junos OS 17.3 versions prior to 17.3R2-S5, 17.3R3-S5
- Junos OS 17.4 versions prior to 17.4R2-S6, 17.4R3
- Junos OS 18.1 versions prior to 18.1R3-S7
- Junos OS 18.2 versions prior to 18.2R2-S5, 18.2R3
- Junos OS 18.3 versions prior to 18.3R1-S6, 18.3R2-S1, 18.3R3
- Junos OS 18.4 versions prior to 18.4R1-S5, 18.4R2
- Junos OS 19.1 versions prior to 19.1R1-S2, 19.1R2
Description
Junos OS contains a cross-site scripting vulnerability (CWE-79).
Impact
An arbitrary script may be executed on the user's J-Web screen.
Solution
Update the Software
Update the software to the latest version according to the information provided by the developer.
Apply a Workaround
Applying workarounds listed below may mitigate the impacts of the vulnerability.
- Access the J-Web service from trusted hosts which may not be compromised by cross-site scripting attacks (e.g. deploying jump hosts with no internet access)
- Disable J-Web
Vendor Status
| Vendor | Link |
| Juniper Networks, Inc. | JSA10986 Junos OS: Cross-Site Scripting (XSS) in J-Web (CVE-2020-1607) |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score:
6.1
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
CVSS v2
AV:N/AC:H/Au:N/C:N/I:P/A:N
Base Score:
2.6
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Credit
Toshitsugu Yoneyama of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
|
| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2020-1607 |
| JVN iPedia |
JVNDB-2020-000003 |