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Juniper Junos OS: 2021-10 Security Bulletin: Junos OS: Stored Cross-Site Scripting (XSS) vulnerability in captive portal (JSA11220) (CVE-2021-31355)

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Juniper Junos OS: 2021-10 Security Bulletin: Junos OS: Stored Cross-Site Scripting (XSS) vulnerability in captive portal (JSA11220) (CVE-2021-31355)

Severity
4
CVSS
(AV:N/AC:M/Au:S/C:N/I:P/A:N)
Published
10/14/2021
Created
10/15/2021
Added
10/14/2021
Modified
03/21/2022

Description

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.

Solution(s)

  • juniper-junos-os-upgrade-latest

References

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