8

CVE-2021-31355

A persistent cross-site scripting (XSS) vulnerability in the captive portal graphical user interface of Juniper Networks Junos OS may allow a remote authenticated user to inject web script or HTML and steal sensitive data and credentials from a web administration session, possibly tricking a follow-on administrative user to perform administrative actions on the device. This issue affects Juniper Networks Junos OS: All versions, including the following supported releases: 12.3X48 versions prior to 12.3X48-D105; 15.1X49 versions prior to 15.1X49-D220; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R1-S1, 20.2R2; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2; 21.1 versions prior to 21.1R2.

Data is provided by the National Vulnerability Database (NVD)
JuniperJunos Version12.3x48 Update-
JuniperJunos Version12.3x48 Updated10
JuniperJunos Version12.3x48 Updated100
JuniperJunos Version12.3x48 Updated15
JuniperJunos Version12.3x48 Updated20
JuniperJunos Version12.3x48 Updated25
JuniperJunos Version12.3x48 Updated30
JuniperJunos Version12.3x48 Updated35
JuniperJunos Version12.3x48 Updated40
JuniperJunos Version12.3x48 Updated45
JuniperJunos Version12.3x48 Updated50
JuniperJunos Version12.3x48 Updated51
JuniperJunos Version12.3x48 Updated55
JuniperJunos Version12.3x48 Updated60
JuniperJunos Version12.3x48 Updated65
JuniperJunos Version12.3x48 Updated66
JuniperJunos Version12.3x48 Updated70
JuniperJunos Version12.3x48 Updated75
JuniperJunos Version12.3x48 Updated80
JuniperJunos Version12.3x48 Updated85
JuniperJunos Version12.3x48 Updated90
JuniperJunos Version12.3x48 Updated95
JuniperJunos Version15.1x49 Update-
JuniperJunos Version15.1x49 Updated10
JuniperJunos Version15.1x49 Updated100
JuniperJunos Version15.1x49 Updated110
JuniperJunos Version15.1x49 Updated120
JuniperJunos Version15.1x49 Updated130
JuniperJunos Version15.1x49 Updated131
JuniperJunos Version15.1x49 Updated140
JuniperJunos Version15.1x49 Updated15
JuniperJunos Version15.1x49 Updated150
JuniperJunos Version15.1x49 Updated160
JuniperJunos Version15.1x49 Updated170
JuniperJunos Version15.1x49 Updated180
JuniperJunos Version15.1x49 Updated190
JuniperJunos Version15.1x49 Updated20
JuniperJunos Version15.1x49 Updated200
JuniperJunos Version15.1x49 Updated210
JuniperJunos Version15.1x49 Updated25
JuniperJunos Version15.1x49 Updated30
JuniperJunos Version15.1x49 Updated35
JuniperJunos Version15.1x49 Updated40
JuniperJunos Version15.1x49 Updated45
JuniperJunos Version15.1x49 Updated50
JuniperJunos Version15.1x49 Updated55
JuniperJunos Version15.1x49 Updated60
JuniperJunos Version15.1x49 Updated65
JuniperJunos Version15.1x49 Updated70
JuniperJunos Version15.1x49 Updated75
JuniperJunos Version15.1x49 Updated80
JuniperJunos Version15.1x49 Updated90
JuniperJunos Version18.3 Update-
JuniperJunos Version18.3 Updater1
JuniperJunos Version18.3 Updater1-s1
JuniperJunos Version18.3 Updater1-s2
JuniperJunos Version18.3 Updater1-s3
JuniperJunos Version18.3 Updater1-s4
JuniperJunos Version18.3 Updater1-s5
JuniperJunos Version18.3 Updater1-s6
JuniperJunos Version18.3 Updater2
JuniperJunos Version18.3 Updater2-s1
JuniperJunos Version18.3 Updater2-s2
JuniperJunos Version18.3 Updater2-s3
JuniperJunos Version18.3 Updater3
JuniperJunos Version18.3 Updater3-s1
JuniperJunos Version18.3 Updater3-s2
JuniperJunos Version18.4 Update-
JuniperJunos Version18.4 Updater1
JuniperJunos Version18.4 Updater1-s1
JuniperJunos Version18.4 Updater1-s2
JuniperJunos Version18.4 Updater1-s3
JuniperJunos Version18.4 Updater1-s4
JuniperJunos Version18.4 Updater1-s5
JuniperJunos Version18.4 Updater1-s6
JuniperJunos Version18.4 Updater1-s7
JuniperJunos Version18.4 Updater2
JuniperJunos Version18.4 Updater2-s1
JuniperJunos Version18.4 Updater2-s2
JuniperJunos Version18.4 Updater2-s3
JuniperJunos Version18.4 Updater2-s4
JuniperJunos Version18.4 Updater3
JuniperJunos Version18.4 Updater3-s1
JuniperJunos Version18.4 Updater3-s2
JuniperJunos Version18.4 Updater3-s3
JuniperJunos Version19.1 Update-
JuniperJunos Version19.1 Updater1
JuniperJunos Version19.1 Updater1-s1
JuniperJunos Version19.1 Updater1-s2
JuniperJunos Version19.1 Updater1-s3
JuniperJunos Version19.1 Updater1-s4
JuniperJunos Version19.1 Updater1-s5
JuniperJunos Version19.1 Updater2
JuniperJunos Version19.1 Updater2-s1
JuniperJunos Version19.1 Updater3
JuniperJunos Version19.1 Updater3-s1
JuniperJunos Version19.2 Update-
JuniperJunos Version19.2 Updater1
JuniperJunos Version19.2 Updater1-s1
JuniperJunos Version19.2 Updater1-s2
JuniperJunos Version19.2 Updater1-s3
JuniperJunos Version19.2 Updater1-s4
JuniperJunos Version19.2 Updater2
JuniperJunos Version19.2 Updater2-s1
JuniperJunos Version19.3 Update-
JuniperJunos Version19.3 Updater1
JuniperJunos Version19.3 Updater1-s1
JuniperJunos Version19.3 Updater2
JuniperJunos Version19.3 Updater2-s1
JuniperJunos Version19.3 Updater2-s2
JuniperJunos Version19.3 Updater2-s3
JuniperJunos Version19.4 Updater1
JuniperJunos Version19.4 Updater1-s1
JuniperJunos Version19.4 Updater1-s2
JuniperJunos Version19.4 Updater2
JuniperJunos Version19.4 Updater2-s1
JuniperJunos Version20.1 Updater1
JuniperJunos Version20.1 Updater1-s1
JuniperJunos Version20.1 Updater1-s2
JuniperJunos Version20.1 Updater1-s3
JuniperJunos Version20.1 Updater1-s4
JuniperJunos Version20.1 Updater2
JuniperJunos Version20.1 Updater2-s1
JuniperJunos Version20.1 Updater2-s2
JuniperJunos Version20.2 Updater1
JuniperJunos Version20.2 Updater2
JuniperJunos Version20.3 Updater1
JuniperJunos Version20.3 Updater1-s1
JuniperJunos Version20.4 Updater1
JuniperJunos Version20.4 Updater1-s1
JuniperJunos Version21.1 Updater1
JuniperJunos Version21.1 Updater1-s1
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.33% 0.528
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 5.4 2.3 2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
nvd@nist.gov 3.5 6.8 2.9
AV:N/AC:M/Au:S/C:N/I:P/A:N
sirt@juniper.net 8 2.1 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.