PKId in Juniper Junos OS before 12.1X44-D52, 12.1X46 before 12.1X46-D37, 12.1X47 before 12.1X47-D30, 12.3 before 12.3R12, 12.3X48 before 12.3X48-D20, 13.3 before 13.3R10, 14.1 before 14.1R8, 14.1X53 before 14.1X53-D40, 14.2 before 14.2R7, 15.1 before 15.1R4, 15.1X49 before 15.1X49-D20, 15.1X53 before 15.1X53-D60, and 16.1 before 16.1R1 allow remote attackers to bypass an intended certificate validation mechanism via a self-signed certificate with an Issuer name that matches a valid CA certificate enrolled in Junos.
Weakness
The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Junos | Juniper | * | 12.1x44 (including) |
| Junos | Juniper | 12.1x46 (including) | 12.1x46 (including) |
| Junos | Juniper | 12.1x46-d10 (including) | 12.1x46-d10 (including) |
| Junos | Juniper | 12.1x46-d15 (including) | 12.1x46-d15 (including) |
| Junos | Juniper | 12.1x46-d20 (including) | 12.1x46-d20 (including) |
| Junos | Juniper | 12.1x46-d25 (including) | 12.1x46-d25 (including) |
| Junos | Juniper | 12.1x46-d30 (including) | 12.1x46-d30 (including) |
| Junos | Juniper | 12.1x46-d35 (including) | 12.1x46-d35 (including) |
| Junos | Juniper | 12.1x47 (including) | 12.1x47 (including) |
| Junos | Juniper | 12.1x47-d10 (including) | 12.1x47-d10 (including) |
| Junos | Juniper | 12.1x47-d15 (including) | 12.1x47-d15 (including) |
| Junos | Juniper | 12.1x47-d20 (including) | 12.1x47-d20 (including) |
| Junos | Juniper | 12.1x47-d25 (including) | 12.1x47-d25 (including) |
| Junos | Juniper | 12.3 (including) | 12.3 (including) |
| Junos | Juniper | 12.3-r1 (including) | 12.3-r1 (including) |
| Junos | Juniper | 12.3-r10 (including) | 12.3-r10 (including) |
| Junos | Juniper | 12.3-r11 (including) | 12.3-r11 (including) |
| Junos | Juniper | 12.3-r2 (including) | 12.3-r2 (including) |
| Junos | Juniper | 12.3-r3 (including) | 12.3-r3 (including) |
| Junos | Juniper | 12.3-r4 (including) | 12.3-r4 (including) |
| Junos | Juniper | 12.3-r5 (including) | 12.3-r5 (including) |
| Junos | Juniper | 12.3-r6 (including) | 12.3-r6 (including) |
| Junos | Juniper | 12.3-r7 (including) | 12.3-r7 (including) |
| Junos | Juniper | 12.3-r8 (including) | 12.3-r8 (including) |
| Junos | Juniper | 12.3-r9 (including) | 12.3-r9 (including) |
| Junos | Juniper | 12.3x48-d10 (including) | 12.3x48-d10 (including) |
| Junos | Juniper | 12.3x48-d15 (including) | 12.3x48-d15 (including) |
| Junos | Juniper | 12.3x50 (including) | 12.3x50 (including) |
| Junos | Juniper | 13.3 (including) | 13.3 (including) |
| Junos | Juniper | 13.3-r1 (including) | 13.3-r1 (including) |
| Junos | Juniper | 13.3-r2 (including) | 13.3-r2 (including) |
| Junos | Juniper | 13.3-r2-s2 (including) | 13.3-r2-s2 (including) |
| Junos | Juniper | 13.3-r3 (including) | 13.3-r3 (including) |
| Junos | Juniper | 13.3-r4 (including) | 13.3-r4 (including) |
| Junos | Juniper | 13.3-r5 (including) | 13.3-r5 (including) |
| Junos | Juniper | 13.3-r6 (including) | 13.3-r6 (including) |
| Junos | Juniper | 13.3-r7 (including) | 13.3-r7 (including) |
| Junos | Juniper | 13.3-r8 (including) | 13.3-r8 (including) |
| Junos | Juniper | 13.3-r9 (including) | 13.3-r9 (including) |
| Junos | Juniper | 14.1 (including) | 14.1 (including) |
| Junos | Juniper | 14.1-r1 (including) | 14.1-r1 (including) |
| Junos | Juniper | 14.1-r2 (including) | 14.1-r2 (including) |
| Junos | Juniper | 14.1-r3 (including) | 14.1-r3 (including) |
| Junos | Juniper | 14.1-r4 (including) | 14.1-r4 (including) |
| Junos | Juniper | 14.1-r5 (including) | 14.1-r5 (including) |
| Junos | Juniper | 14.1-r6 (including) | 14.1-r6 (including) |
| Junos | Juniper | 14.1-r7 (including) | 14.1-r7 (including) |
| Junos | Juniper | 14.1x53-d10 (including) | 14.1x53-d10 (including) |
| Junos | Juniper | 14.1x53-d15 (including) | 14.1x53-d15 (including) |
| Junos | Juniper | 14.1x53-d16 (including) | 14.1x53-d16 (including) |
| Junos | Juniper | 14.1x53-d25 (including) | 14.1x53-d25 (including) |
| Junos | Juniper | 14.1x53-d26 (including) | 14.1x53-d26 (including) |
| Junos | Juniper | 14.1x53-d27 (including) | 14.1x53-d27 (including) |
| Junos | Juniper | 14.1x53-d30 (including) | 14.1x53-d30 (including) |
| Junos | Juniper | 14.1x53-d35 (including) | 14.1x53-d35 (including) |
| Junos | Juniper | 14.2 (including) | 14.2 (including) |
| Junos | Juniper | 14.2-r1 (including) | 14.2-r1 (including) |
| Junos | Juniper | 14.2-r2 (including) | 14.2-r2 (including) |
| Junos | Juniper | 14.2-r3 (including) | 14.2-r3 (including) |
| Junos | Juniper | 14.2-r4 (including) | 14.2-r4 (including) |
| Junos | Juniper | 14.2-r5 (including) | 14.2-r5 (including) |
| Junos | Juniper | 14.2-r6 (including) | 14.2-r6 (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 | 15.1x49-d10 (including) | 15.1x49-d10 (including) |
| Junos | Juniper | 15.1x53-d10 (including) | 15.1x53-d10 (including) |
| Junos | Juniper | 15.1x53-d20 (including) | 15.1x53-d20 (including) |
| Junos | Juniper | 15.1x53-d21 (including) | 15.1x53-d21 (including) |
| Junos | Juniper | 15.1x53-d30 (including) | 15.1x53-d30 (including) |
| Junos | Juniper | 15.1x53-d32 (including) | 15.1x53-d32 (including) |
| Junos | Juniper | 15.1x53-d33 (including) | 15.1x53-d33 (including) |
| Junos | Juniper | 15.1x53-d34 (including) | 15.1x53-d34 (including) |
| Junos | Juniper | 16.1 (including) | 16.1 (including) |
Extended Description
Even if a certificate is well-formed, signed, and follows the chain of trust, it may simply be a valid certificate for a different site than the site that the product is interacting with. In order to ensure data integrity, the certificate must be valid, and it must pertain to the site that is being accessed. Even if the product attempts to check the hostname, it is still possible to incorrectly check the hostname. For example, attackers could create a certificate with a name that begins with a trusted name followed by a NUL byte, which could cause some string-based comparisons to only examine the portion that contains the trusted name.