Auth bypass in Juniper Junos
CVE-2023-28963
An Improper Authentication vulnerability in cert-mgmt.php, used by the J-Web component of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to read arbitrary files from temporary folders on the device. This issue affects Juniper Networks Junos OS: All versions prior to 19.1R3-S10; 19.2 versions prior to 19.2R3-S7; 19.3 versions prior to 19.3R3-S8; 19.4 versions prior to 19.4R3-S11; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S7; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S1; 22.2 versions prior to 22.2R2-S1, 22.2R3; 22.3 versions prior to 22.3R1-S2, 22.3R2.
Vulnerability class: Broken Authentication
EPSS: 0.005 (39.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Juniper Junos — versions 19.4, 20.1, 20.2
- Juniper Networks Junos Os — versions unspecified, 19.2, 19.3
Weakness classification (CWE)
References
- sirt@juniper.net (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-28963?
- CVE-2023-28963 is a medium-severity vulnerability in Juniper Junos, classified under Improper Authentication. CVSS score: 5.3/10. Published 2023-04-17.
- How severe is CVE-2023-28963?
- Medium severity. CVSS v3 base score is 5.3 out of 10.