An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series allows adjacent subscribers to bypass configured firewall filters. On MX Series devices with MPC10/11, LC4800/9600, and MX304 with subscribers configured on static interfaces, ingress firewall filters are not enforced, so that neither protocol level nor upstream bandwidth limitation are in effect. This issue affects Junos OS on MX with MPC10/11, LC4800/9600/4802, and MX304: * 23.2 versions from 23.2R2-S1 before 23.2R2-S7, * 23.4 versions from 23.4R2 before 23.4R2-S7, * 24.2 versions before 24.2R2-S3, * 24.4 versions before 24.4R2-S2, * 25.2 versions before 25.2R2.
Attack Parameters
Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 37
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
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: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: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:24.4:-:*:*:*:*:*:*
|
— | — |
|
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 Junos
cpe:2.3:o:juniper:junos:24.4:r2:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:24.4:r2-s1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:25.2:-:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:25.2:r1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:25.2:r1-s1:*:*:*:*:*:*
|
— | — |
|
Juniper Junos
cpe:2.3:o:juniper:junos:25.2:r1-s2:*:*:*:*:*:*
|
— | — |
|
Juniper Lc4800
cpe:2.3:h:juniper:lc4800:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Lc4802
cpe:2.3:h:juniper:lc4802:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Lc9600
cpe:2.3:h:juniper:lc9600:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Mpc10e-10c
cpe:2.3:h:juniper:mpc10e-10c:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Mpc10e-15c
cpe:2.3:h:juniper:mpc10e-15c:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Mpc11
cpe:2.3:h:juniper:mpc11:-:*:*:*:*:*:*:*
|
— | — |
|
Juniper Mx304
cpe:2.3:h:juniper:mx304:-:*:*:*:*:*:*:*
|
— | — |