PT-2022-5197 · Juniper Networks · Junos

Published 2022-10-12 · Updated 2022-11-01 · CVE-2022-22241

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 19.1R3-S9 Juniper Networks Junos OS 19.2 versions prior to 19.2R3-S6 Juniper Networks Junos OS 19.3 versions prior to 19.3R3-S7 Juniper Networks Junos OS 19.4 versions prior to 19.4R2-S7, 19.4R3-S9 Juniper Networks Junos OS 20.1 versions prior to 20.1R3-S5 Juniper Networks Junos OS 20.2 versions prior to 20.2R3-S5 Juniper Networks Junos OS 20.3 versions prior to 20.3R3-S5 Juniper Networks Junos OS 20.4 versions prior to 20.4R3-S4 Juniper Networks Junos OS 21.1 versions prior to 21.1R3-S2 Juniper Networks Junos OS 21.2 versions prior to 21.2R3-S1 Juniper Networks Junos OS 21.3 versions prior to 21.3R2-S2, 21.3R3 Juniper Networks Junos OS 21.4 versions prior to 21.4R1-S2, 21.4R2-S1, 21.4R3 Juniper Networks Junos OS 22.1 versions prior to 22.1R1-S1, 22.1R2

Description An Improper Input Validation issue in the J-Web component of Juniper Networks Junos OS may allow an unauthenticated attacker to access data without proper authorization. Utilizing a crafted POST request, deserialization may occur which could lead to unauthorized local file access or the ability to execute arbitrary commands.

Recommendations For versions prior to 19.1R3-S9, update to 19.1R3-S9 or later. For 19.2 versions prior to 19.2R3-S6, update to 19.2R3-S6 or later. For 19.3 versions prior to 19.3R3-S7, update to 19.3R3-S7 or later. For 19.4 versions prior to 19.4R2-S7, 19.4R3-S9, update to 19.4R2-S7, 19.4R3-S9 or later. For 20.1 versions prior to 20.1R3-S5, update to 20.1R3-S5 or later. For 20.2 versions prior to 20.2R3-S5, update to 20.2R3-S5 or later. For 20.3 versions prior to 20.3R3-S5, update to 20.3R3-S5 or later. For 20.4 versions prior to 20.4R3-S4, update to 20.4R3-S4 or later. For 21.1 versions prior to 21.1R3-S2, update to 21.1R3-S2 or later. For 21.2 versions prior to 21.2R3-S1, update to 21.2R3-S1 or later. For 21.3 versions prior to 21.3R2-S2, 21.3R3, update to 21.3R2-S2, 21.3R3 or later. For 21.4 versions prior to 21.4R1-S2, 21.4R2-S1, 21.4R3, update to 21.4R1-S2, 21.4R2-S1, 21.4R3 or later. For 22.1 versions prior to 22.1R1-S1, 22.1R2, update to 22.1R1-S1, 22.1R2 or later. As a temporary workaround, consider blocking access to the J-Web interface from external networks and restricting it to trusted hosts only.

Fix

Deserialization of Untrusted Data

RCE

Weakness Enumeration

CWE-502

CWE-20

Related Identifiers

BDU:2022-06454

CVE-2022-22241

Affected Products

Junos

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2022-22241 · Security Note
• https://osv.dev/vulnerability/CVE-2022-22241 · Vendor Advisory
• https://kb.juniper.net/JSA69899 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-06454 · Security Note
• https://t.me/opennews/10705 · Telegram Post
• https://t.me/rnetsec/17665 · Telegram Post
• https://t.me/defcon_news/106309 · Telegram Post
• https://t.me/tmfeed/154209 · Telegram Post
• https://t.me/true_secator/3640 · Telegram Post
• https://octagon.net/blog/2022/10/28/juniper-sslvpn-junos-rce-and-multiple-vulnerabilities · Note
• https://t.me/cybersecuritytechnologies/7082 · Telegram Post