When set system ports console insecure is enabled, root login is disallowed for Junos OS as expected. However, the root password can be changed using set system root-authentication plain-text-password on systems booted from an OAM (Operations, Administration, and Maintenance) volume, leading to a possible administrative bypass with physical access to the console. OAM volumes (e.g. flash drives) are typically instantiated as /dev/gpt/oam, or /oam for short. Password recovery, changing the root password from a console, should not have been allowed from an insecure console. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1F6-S12, 15.1R7-S3; 15.1X49 versions prior to 15.1X49-D160; 15.1X53 versions prior to 15.1X53-D236, 15.1X53-D496, 15.1X53-D68; 16.1 versions prior to 16.1R3-S10, 16.1R6-S6, 16.1R7-S3; 16.1X65 versions prior to 16.1X65-D49; 16.2 versions prior to 16.2R2-S8; 17.1 versions prior to 17.1R2-S10, 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R3-S1; 17.3 versions prior to 17.3R3-S3; 17.4 versions prior to 17.4R1-S6, 17.4R2-S2; 18.1 versions prior to 18.1R2-S4, 18.1R3-S3; 18.2 versions prior to 18.2R2; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S2. This issue does not affect Junos OS releases prior to 15.1.
The product mixes trusted and untrusted data in the same data structure or structured message.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Junos | Juniper | 15.1-f2 (including) | 15.1-f2 (including) |
Junos | Juniper | 15.1-f3 (including) | 15.1-f3 (including) |
Junos | Juniper | 15.1-f4 (including) | 15.1-f4 (including) |
Junos | Juniper | 15.1-f5 (including) | 15.1-f5 (including) |
Junos | Juniper | 15.1-f6 (including) | 15.1-f6 (including) |
Junos | Juniper | 15.1-f7 (including) | 15.1-f7 (including) |
Junos | Juniper | 15.1-r1 (including) | 15.1-r1 (including) |
Junos | Juniper | 15.1-r2 (including) | 15.1-r2 (including) |
Junos | Juniper | 15.1-r3 (including) | 15.1-r3 (including) |
Junos | Juniper | 15.1-r4 (including) | 15.1-r4 (including) |
Junos | Juniper | 15.1-r5 (including) | 15.1-r5 (including) |
Junos | Juniper | 15.1-r6 (including) | 15.1-r6 (including) |