NFX Series devices using Juniper Networks Junos OS are susceptible to a local code execution vulnerability thereby allowing an attacker to elevate their privileges via the Junos Device Management Daemon (JDMD) process.
This issue affects Juniper Networks Junos OS on NFX Series:
This issue does not affect the JDMD as used by Junos Node Slicing such as External Servers use in conjunction with Junos Node Slicing and In-Chassis Junos Node Slicing on MX480, MX960, MX2008, MX2010, MX2020.
There is no specific software configuration required to be affected by this issue on affected platforms and products.
Juniper SIRT is not aware of any malicious exploitation of these vulnerabilities.
This issue was discovered during a external security research.
This issue has been assigned CVE-2021-0252 .
The following software releases have been updated to resolve this specific issue: Junos OS: 18.2R3-S5, 18.3R2-S4, 18.3R3-S3, 18.4R2-S5, 18.4R3-S4, 19.1R1-S3, 19.1R2, 19.2R1-S5, 19.2R2, 19.3R1 and all subsequent releases.
This issue is being tracked as 1452147 .
Software releases or updates are available for download at https://support.juniper.net/support/downloads/
There are no viable workarounds for these issue.
To reduce the risk of exploitation of this issue, use access lists or firewall filters to limit access to only trusted administrative networks, hosts and users
2021-04-14: Initial Publication.