A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators (FPCs) of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device.
A local user with low privileges can gain direct access to the installed FPCs as a high privileged user, which can potentially lead to a full compromise of the affected component.
This issue affects Junos OS Evolved on PTX10004, PTX10008, PTX100016, with JNP10K-LC1201 or JNP10K-LC1202:
- All versions before 21.2R3-S8-EVO,
- 21.4-EVO versions before 21.4R3-S7-EVO,
- 22.2-EVO versions before 22.2R3-S4-EVO,
- 22.3-EVO versions before 22.3R3-S3-EVO,
- 22.4-EVO versions before 22.4R3-S2-EVO,
- 23.2-EVO versions before 23.2R2-EVO.
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.
The following software releases have been updated to resolve this specific issue: 21.2R3-S8-EVO, 21.4R3-S7-EVO, 22.2R3-S4-EVO, 22.3R3-S3-EVO, 22.4R3-S2-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases.