The improper handling of client-side parameters in J-Web of Juniper Networks Junos OS allows an attacker to perform a number of different malicious actions against a target device when a user is authenticated to J-Web. An attacker may be able to supersede existing parameters, including hardcoded parameters within the HTTP/S session, access and exploit variables, bypass web application firewall rules or input validation mechanisms, and otherwise alter and modify J-Web's normal behavior. An attacker may be able to transition victims to malicious web services, or exfiltrate sensitive information from otherwise secure web forms. This issue affects: Juniper Networks Junos OS: All versions prior to 17.4R3-S3; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2.
References
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published: 2021-04-22T19:37:25.649841Z

Updated: 2024-09-17T01:12:12.544Z

Reserved: 2020-10-27T00:00:00

Link: CVE-2021-0269

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-04-22T20:15:09.980

Modified: 2021-05-04T20:37:23.940

Link: CVE-2021-0269

cve-icon Redhat

No data.