CVE-2021-0269

Severity

88%

Complexity

27%

Confidentiality

98%

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.

CVSS 3.1 Base Score 8.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 5.1. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (AV:N/AC:H/Au:N/C:P/I:P/A:P).

Overview

Type

Juniper

First reported 3 years ago

2021-04-22 20:15:00

Last updated 3 years ago

2021-05-04 20:37:00

Affected Software

Juniper JUNOS 17.4

17.4

Juniper Junos 17.4 R1

17.4

Juniper JUNOS 17.4 R1-S1

17.4

Juniper JUNOS 17.4 R1-S2

17.4

Juniper JUNOS 17.4R1-S4

17.4

Juniper JunOS 17.4 R1-s5

17.4

Juniper JUNOS 17.4 R1-S6

17.4

Juniper JUNOS 17.4R1-S7

17.4

Juniper Junos 17.4 R2

17.4

Juniper JUNOS 17.4 R2-S1

17.4

Juniper JUNOS 17.4 R2-S10

17.4

Juniper Junos 17.4 R2-S2

17.4

Juniper JUNOS 17.4 R2-S3

17.4

Juniper JUNOS 17.4R2-S4

17.4

Juniper JUNOS 17.4 R2-S5

17.4

Juniper JUNOS 17.4 R2-S6

17.4

Juniper JUNOS 17.4 R2-S7

17.4

Juniper JUNOS 17.4 R2-S8

17.4

Juniper JUNOS 17.4 R2-S9

17.4

Juniper JUNOS 17.4 R3

17.4

Juniper JUNOS 17.4 R3-S1

17.4

Juniper JUNOS 18.1

18.1

Juniper JUNOS 18.1R2

18.1

Juniper JUNOS R2-S1

18.1

Juniper JUNOS R2-S2

18.1

Juniper JUNOS 18.1 R2-S4

18.1

Juniper JUNOS 18.1 R3

18.1

Juniper JunOS 18.1 R3-s1

18.1

Juniper JUNOS 18.1 R3-S2

18.1

Juniper JUNOS 18.1 R3-S3

18.1

Juniper JUNOS 18.1R3-S4

18.1

Juniper JUNOS 18.1 R3-S6

18.1

Juniper JUNOS 18.1 R3-S7

18.1

Juniper JUNOS 18.1 R3-S8

18.1

Juniper JUNOS 18.1 R3-S9

18.1

Juniper JUNOS 18.2

18.2

Juniper JunOS 18.2 R1-S3

18.2

Juniper JUNOS 18.2 R1-S5

18.2

Juniper JUNOS 18.2 R2-S1

18.2

Juniper JUNOS 18.2R2-S2

18.2

Juniper JUNOS 18.2R2-S3

18.2

Juniper JUNOS18.2 R2-S4

18.2

Juniper JUNOS 18.2 R2-S5

18.2

Juniper JUNOS 18.2 R2-S6

18.2

Juniper JUNOS 18.2R3

18.2

Juniper JUNOS 18.2 R3-S1

18.2

Juniper JUNOS 18.2 R3-S2

18.2

Juniper JUNOS 18.2 R3-S3

18.2

Juniper JUNOS 18.3

18.3

Juniper JUNOS 18.3 R1

18.3

Juniper JUNOS 18.3 R1-S1

18.3

Juniper JUNOS 18.3 R1-S2

18.3

Juniper JUNOS 18.3R1-S3

18.3

Juniper JUNOS 18.3 R1-S5

18.3

Juniper JUNOS 18.3 R1-S6

18.3

Juniper JUNOS 18.3 R2

18.3

Juniper JUNOS 18.3 R2-S1

18.3

Juniper JUNOS 18.3 R2-S2

18.3

Juniper JUNOS 18.3 R2-S3

18.3

Juniper JUNOS 18.3 R3

18.3

Juniper JUNOS 18.3 R3-S1

18.3

Juniper JUNOS 18.4

18.4

Juniper JunOS 18.4 R1

18.4

Juniper Junos OS 18.4 R1-S1

18.4

Juniper JUNOS 18.4R1-S2

18.4

Juniper JUNOS 18.4 R1-S5

18.4

Juniper JUNOS 18.4 R1-S6

18.4

Juniper JUNOS 18.4R2

18.4

Juniper JUNOS 18.4 R2-S1

18.4

Juniper JUNOS 18.4 R2-S2

18.4

Juniper JUNOS 18.4 R2-S3

18.4

Juniper JUNOS 18.4 R3

18.4

Juniper Junos OS 19.1

19.1

Juniper Junos OS 19.1 R1

19.1

Juniper Junos OS 19.1 R1-s1

19.1

Juniper JUNOS 19.1 R1-S2

19.1

Juniper JUNOS 19.1 R1-S3

19.1

Juniper JUNOS 19.1 R1-S4

19.1

Juniper Junos OS 19.1 R2

19.1

Juniper Junos OS 19.2

19.2

Juniper Junos OS 19.2 R1

19.2

Juniper JUNOS 19.2 R1-S1

19.2

Juniper JUNOS 19.2 R1-S2

19.2

Juniper JUNOS 19.2 R1-S3

19.2

Juniper JUNOS 19.3

19.3

Juniper JUNOS 19.3 R1

19.3

Juniper JUNOS 19.3 R1-S1

19.3

Juniper JUNOS 19.3 R2

19.3

Juniper JUNOS 19.3 R2-S1

19.3

Juniper JUNOS 19.3 R2-S2

19.3

Juniper JUNOS 19.4 R1

19.4

Juniper JUNOS 19.4 R1-S1

19.4

Juniper JUNOS 20.1 R1

20.1

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