CVE-2021-31350
Summary
| CVE | CVE-2021-31350 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-10-19 19:15:00 UTC |
| Updated | 2021-10-25 12:58:00 UTC |
| Description | An Improper Privilege Management vulnerability in the gRPC framework, used by the Juniper Extension Toolkit (JET) API on Juniper Networks Junos OS and Junos OS Evolved, allows a network-based, low-privileged authenticated attacker to perform operations as root, leading to complete compromise of the targeted system. The issue is caused by the JET service daemon (jsd) process authenticating the user, then passing configuration operations directly to the management daemon (mgd) process, which runs as root. This issue affects Juniper Networks Junos OS: 18.4 versions prior to 18.4R1-S8, 18.4R2-S8, 18.4R3-S8; 19.1 versions prior to 19.1R2-S3, 19.1R3-S5; 19.2 versions prior to 19.2R1-S7, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2-S1, 20.3R3; 20.4 versions prior to 20.4R2. This issue does not affect Juniper Networks Junos OS versions prior to 18.4R1. Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-EVO; 21.1-EVO versions prior to 21.1R2-EVO. |
Risk And Classification
Problem Types: CWE-269
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Juniper | Junos | 18.4 | - | All | All |
| Operating System | Juniper | Junos | 18.4 | r1 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s7 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s8 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3-s8 | All | All |
| Operating System | Juniper | Junos | 19.1 | - | All | All |
| Operating System | Juniper | Junos | 19.1 | r1 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 19.1 | r2 | All | All |
| Operating System | Juniper | Junos | 19.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 19.1 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 19.1 | r3-s5 | All | All |
| Operating System | Juniper | Junos | 19.2 | - | All | All |
| Operating System | Juniper | Junos | 19.2 | r1 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 19.2 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 19.3 | - | All | All |
| Operating System | Juniper | Junos | 19.3 | r1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s5 | All | All |
| Operating System | Juniper | Junos | 19.3 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 19.4 | r1 | All | All |
| Operating System | Juniper | Junos | 19.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 19.4 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 19.4 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 19.4 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 20.1 | r2 | All | All |
| Operating System | Juniper | Junos | 20.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 20.1 | r3 | All | All |
| Operating System | Juniper | Junos | 20.2 | r1 | All | All |
| Operating System | Juniper | Junos | 20.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 20.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 20.2 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 20.2 | r2 | All | All |
| Operating System | Juniper | Junos | 20.2 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 20.2 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 20.2 | r3 | All | All |
| Operating System | Juniper | Junos | 20.3 | r1 | All | All |
| Operating System | Juniper | Junos | 20.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 20.3 | r2 | All | All |
| Operating System | Juniper | Junos | 20.3 | r3 | All | All |
| Operating System | Juniper | Junos | 20.4 | r1 | All | All |
| Operating System | Juniper | Junos | 20.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 18.3 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 19.1 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 19.1 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 19.2 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 19.2 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 19.3 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 19.3 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 19.4 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 19.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.1 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.1 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.1 | r2-s2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.2 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.2 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.3 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.3 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.4 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.1 | All | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.1 | r1-s1 | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 2021-10 Security Bulletin: Junos OS and Junos OS Evolved: Privilege escalation vulnerability in Juniper Extension Toolkit (JET) (CVE-2021-31350) - Juniper Networks | CONFIRM | kb.juniper.net | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.