#VU49554 Information disclosure in Juniper Junos OS - CVE-2021-0210
Published: January 15, 2021
Vulnerability identifier: #VU49554
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-0210
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Juniper Junos OS
Juniper Junos OS
Software vendor:
Juniper Networks, Inc.
Juniper Networks, Inc.
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output in J-Web. A remote non-authenticated attacker can elevate privileges over the target system through opportunistic use of an authenticated users session.
Remediation
Install updates from vendor's website.
This issue affects:
Juniper Networks Junos OS
- 12.3 versions prior to 12.3R12-S17;
- 17.3 versions prior to 17.3R3-S10;
- 17.4 versions prior to 17.4R2-S12, 17.4R3-S3;
- 18.1 versions prior to 18.1R3-S11;
- 18.2 versions prior to 18.2R3-S6;
- 18.3 versions prior to 18.3R2-S4, 18.3R3-S4;
- 18.4 versions prior to 18.4R2-S5, 18.4R3-S5;
- 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3;
- 19.2 versions prior to 19.2R1-S5, 19.2R3, 19.2R3-S1;
- 19.3 versions prior to 19.3R2-S4, 19.3R3;
- 19.4 versions prior to 19.4R1-S3, 19.4R2-S2, 19.4R3;
- 20.1 versions prior to 20.1R1-S4, 20.1R2;
- 20.2 versions prior to 20.2R1-S1, 20.2R2.