Vulnerability Details : CVE-2021-0246
On SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3, devices using tenant services on Juniper Networks Junos OS, due to incorrect default permissions assigned to tenant system administrators a tenant system administrator may inadvertently send their network traffic to one or more tenants while concurrently modifying the overall device system traffic management, affecting all tenants and the service provider. Further, a tenant may inadvertently receive traffic from another tenant. This issue affects: Juniper Networks Junos OS 18.3 version 18.3R1 and later versions on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2; 18.3 versions prior to 18.3R3 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2; 18.4 versions prior to 18.4R2 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3; 19.1 versions prior to 19.1R2 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3. This issue does not affect: Juniper Networks Junos OS versions prior to 18.3R1.
Products affected by CVE-2021-0246
- cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r2-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r2-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-0246
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-0246
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
7.3
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:L |
1.5
|
5.3
|
Juniper Networks, Inc. |
CWE ids for CVE-2021-0246
-
During installation, installed file permissions are set to allow anyone to modify those files.Assigned by:
- nvd@nist.gov (Primary)
- sirt@juniper.net (Secondary)
References for CVE-2021-0246
-
https://kb.juniper.net/JSA11139
2021-04 Security Bulletin: Junos OS: SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3: In a multi-tenant environment, a tenant host administrator may be able to jailbreak out of theirVendor Advisory
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