Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2021-10-19T19:15:08.837

Last Modified

2024-11-21T06:05:29.287

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.0 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:S/C:N/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: SINGLE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

6.8

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-79
  • Type: Primary
    CWE-79
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.3 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 18.4 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.1 Yes
Operating System juniper junos 19.2 Yes
Operating System juniper junos 19.2 Yes
Operating System juniper junos 19.2 Yes
Operating System juniper junos 19.2 Yes
Operating System juniper junos 19.2 Yes
Operating System juniper junos 19.2 Yes
Operating System juniper junos 19.2 Yes
Operating System juniper junos 19.2 Yes
Operating System juniper junos 19.3 Yes
Operating System juniper junos 19.3 Yes
Operating System juniper junos 19.3 Yes
Operating System juniper junos 19.3 Yes
Operating System juniper junos 19.3 Yes
Operating System juniper junos 19.3 Yes
Operating System juniper junos 19.3 Yes
Operating System juniper junos 19.4 Yes
Operating System juniper junos 19.4 Yes
Operating System juniper junos 19.4 Yes
Operating System juniper junos 19.4 Yes
Operating System juniper junos 19.4 Yes
Operating System juniper junos 20.1 Yes
Operating System juniper junos 20.1 Yes
Operating System juniper junos 20.1 Yes
Operating System juniper junos 20.1 Yes
Operating System juniper junos 20.1 Yes
Operating System juniper junos 20.1 Yes
Operating System juniper junos 20.1 Yes
Operating System juniper junos 20.1 Yes
Operating System juniper junos 20.2 Yes
Operating System juniper junos 20.2 Yes
Operating System juniper junos 20.3 Yes
Operating System juniper junos 20.3 Yes
Operating System juniper junos 20.4 Yes
Operating System juniper junos 20.4 Yes
Operating System juniper junos 21.1 Yes
Operating System juniper junos 21.1 Yes
References