An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service (DoS). If an attempt is made to subscribe to an unsupported telemetry sensor path on EX2300, EX3400, EX4000, EX4100 and EX4400 via gRPC, this causes the FPC to crash. This leads to a complete service outage until the module has automatically restarted.
The following log message can be seen when this issue happens:
agentd[<PID>]: AGENTD_RESOURCE_NOT_FOUND: No resource name found for <sensor>
This issue affects Junos OS on
EX2300, EX3400, EX4000, EX4100 and EX4400
devices:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2.
Attack Parameters
Impact Assessment
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 46
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Juniper Junos
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
|
— |
23.2
|
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r2-s3:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r2-s4:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r2-s5:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.2:r2-s6:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r2-s3:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r2-s4:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r2-s5:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r2-s6:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:23.4:r2-s7:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.2:r2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.2:r2-s1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.2:r2-s2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.2:r2-s3:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.2:r2-s4:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.4:-:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.4:r1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.4:r1-s2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.4:r1-s3:*:*:*:*:*:*
|
— | — |
|
Juniper Ex2300
cpe:2.3:h:juniper:ex2300:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Ex2300-C
cpe:2.3:h:juniper:ex2300-c:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Ex3400
cpe:2.3:h:juniper:ex3400:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Ex4000
cpe:2.3:h:juniper:ex4000:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Ex4100
cpe:2.3:h:juniper:ex4100:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Ex4100-F
cpe:2.3:h:juniper:ex4100-f:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Ex4100-H
cpe:2.3:h:juniper:ex4100-h:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Ex4100-H-12t
cpe:2.3:h:juniper:ex4100-h-12t:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Ex4400
cpe:2.3:h:juniper:ex4400:-:*:*:*:*:*:*:*
|
— | — |