PT-2021-2132 · Juniper Networks · Junos

Published 2021-01-13 · Updated 2021-02-05 · CVE-2021-0210

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:N

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions 12.3 through 12.3R12-S17 Juniper Networks Junos OS versions 17.3 through 17.3R3-S10 Juniper Networks Junos OS versions 17.4 through 17.4R2-S12, 17.4R3-S3 Juniper Networks Junos OS versions 18.1 through 18.1R3-S11 Juniper Networks Junos OS versions 18.2 through 18.2R3-S6 Juniper Networks Junos OS versions 18.3 through 18.3R2-S4, 18.3R3-S4 Juniper Networks Junos OS versions 18.4 through 18.4R2-S5, 18.4R3-S5 Juniper Networks Junos OS versions 19.1 through 19.1R1-S6, 19.1R2-S2, 19.1R3-S3 Juniper Networks Junos OS versions 19.2 through 19.2R1-S5, 19.2R3, 19.2R3-S1 Juniper Networks Junos OS versions 19.3 through 19.3R2-S4, 19.3R3 Juniper Networks Junos OS versions 19.4 through 19.4R1-S3, 19.4R2-S2, 19.4R3 Juniper Networks Junos OS versions 20.1 through 20.1R1-S4, 20.1R2 Juniper Networks Junos OS versions 20.2 through 20.2R1-S1, 20.2R2

Description An Information Exposure vulnerability in J-Web of Juniper Networks Junos OS allows an unauthenticated attacker to elevate their privileges over the target system through opportunistic use of an authenticated user's session. This issue is related to the lack of protection for service data.

Recommendations For Juniper Networks Junos OS versions 12.3 through 12.3R12-S17, update to version 12.3R12-S17 or later. For Juniper Networks Junos OS versions 17.3 through 17.3R3-S10, update to version 17.3R3-S10 or later. For Juniper Networks Junos OS versions 17.4 through 17.4R2-S12, 17.4R3-S3, update to version 17.4R2-S12 or 17.4R3-S3 or later. For Juniper Networks Junos OS versions 18.1 through 18.1R3-S11, update to version 18.1R3-S11 or later. For Juniper Networks Junos OS versions 18.2 through 18.2R3-S6, update to version 18.2R3-S6 or later. For Juniper Networks Junos OS versions 18.3 through 18.3R2-S4, 18.3R3-S4, update to version 18.3R2-S4 or 18.3R3-S4 or later. For Juniper Networks Junos OS versions 18.4 through 18.4R2-S5, 18.4R3-S5, update to version 18.4R2-S5 or 18.4R3-S5 or later. For Juniper Networks Junos OS versions 19.1 through 19.1R1-S6, 19.1R2-S2, 19.1R3-S3, update to version 19.1R1-S6 or 19.1R2-S2 or 19.1R3-S3 or later. For Juniper Networks Junos OS versions 19.2 through 19.2R1-S5, 19.2R3, 19.2R3-S1, update to version 19.2R1-S5 or 19.2R3 or 19.2R3-S1 or later. For Juniper Networks Junos OS versions 19.3 through 19.3R2-S4, 19.3R3, update to version 19.3R2-S4 or 19.3R3 or later. For Juniper Networks Junos OS versions 19.4 through 19.4R1-S3, 19.4R2-S2, 19.4R3, update to version 19.4R1-S3 or 19.4R2-S2 or 19.4R3 or later. For Juniper Networks Junos OS versions 20.1 through 20.1R1-S4, 20.1R2, update to version 20.1R1-S4 or 20.1R2 or later. For Juniper Networks Junos OS versions 20.2 through 20.2R1-S1, 20.2R2, update to version 20.2R1-S1 or 20.2R2 or later.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

BDU:2021-00991

CVE-2021-0210

Affected Products

Junos

References · 7

• https://osv.dev/vulnerability/CVE-2021-0210 · Vendor Advisory
• https://kb.juniper.net/JSA11100 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00991 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-0210 · Security Note
• https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11100&cat=SIRT_1&actp=LIST · Note
• https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11100&cat=SIRT_1&actp=LIST · Note
• https://t.me/cvenotify/8863 · Telegram Post