Path traversal in Junos OS - CVE-2019-0074
Published: October 11, 2019
Vulnerability identifier: #VU21723
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-0074
CWE-ID: CWE-22
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences. A local authenticated user can send a specially crafted HTTP request and read arbitrary files on the system.
Note: This vulnerability affects only Junos OS on NFX150 Series, QFX10K Series, EX9200 Series, MX Series and PTX Series with Next-Generation Routing Engine (NG-RE) and vmhost.
Affected software
Junos OS
How to mitigate CVE-2019-0074
Install updates from vendor's website.
Junos OS - addressed in versions 15.1F6-S12, 16.1R6-S6, 16.1R7-S3, 17.1R3, 17.2R3-S1, 17.3R3-S3, 17.4R1-S6, 17.4R2-S2, 17.4R3, 18.1R2-S4, 18.1R3-S3, 18.2X75-D40, 18.2R2, 18.2R3, 18.3R1-S2, 18.3R2, 18.4R1-S1, 18.4R2, 19.1R1