Permissions, Privileges, and Access Controls in Juniper Junos OS and Junos OS Evolved - CVE-2021-31359
Published: October 18, 2021
Vulnerability identifier: #VU57418
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-31359
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS
Junos OS Evolved
Juniper Junos OS
Junos OS Evolved
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in the Juniper DHCP daemon (jdhcpd) process, which leads to security restrictions bypass and privilege escalation.
How to mitigate CVE-2021-31359
Install updates from vendor's website.