Vulnerability Description
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: 18.1 version 18.1R1 and later versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R1-S3, 19.1R2; 19.2 versions prior to 19.2R1-S5, 19.2R2. This issue does not affect: Juniper Networks Junos OS versions prior to 18.1R1. 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Juniper | Junos | 18.1 |
| Juniper | Nfx150 | - |
| Juniper | Nfx250 | - |
| Juniper | Nfx350 | - |
Related Weaknesses (CWE)
References
- https://github.com/orangecertcc/security-research/security/advisories/GHSA-gr7j-ExploitThird Party Advisory
- https://kb.juniper.net/JSA11145Vendor Advisory
- https://github.com/orangecertcc/security-research/security/advisories/GHSA-gr7j-ExploitThird Party Advisory
- https://kb.juniper.net/JSA11145Vendor Advisory
FAQ
What is CVE-2021-0252?
CVE-2021-0252 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 Daem...
How severe is CVE-2021-0252?
CVE-2021-0252 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-0252?
Check the references section above for vendor advisories and patch information. Affected products include: Juniper Junos, Juniper Nfx150, Juniper Nfx250, Juniper Nfx350.