A local privilege escalation vulnerability in telnetd.real of Juniper Networks Junos OS may allow a locally authenticated shell user to escalate privileges and execute arbitrary commands as root. telnetd.real is shipped with setuid permissions enabled and is owned by the root user, allowing local users to run telnetd.real with root privileges. This issue affects Juniper Networks Junos OS: all versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R2-S4, 18.3R3-S4; 18.4 versions prior to 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2; 20.2 versions prior to 20.2R2.
Weakness
The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Junos | Juniper | 15.1 (including) | 15.1 (including) |
| Junos | Juniper | 15.1-a1 (including) | 15.1-a1 (including) |
| Junos | Juniper | 15.1-f (including) | 15.1-f (including) |
| Junos | Juniper | 15.1-f1 (including) | 15.1-f1 (including) |
| Junos | Juniper | 15.1-f2 (including) | 15.1-f2 (including) |
| Junos | Juniper | 15.1-f2-s1 (including) | 15.1-f2-s1 (including) |
| Junos | Juniper | 15.1-f2-s2 (including) | 15.1-f2-s2 (including) |
| Junos | Juniper | 15.1-f2-s3 (including) | 15.1-f2-s3 (including) |
| Junos | Juniper | 15.1-f2-s4 (including) | 15.1-f2-s4 (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-f5-s7 (including) | 15.1-f5-s7 (including) |
| Junos | Juniper | 15.1-f6 (including) | 15.1-f6 (including) |
| Junos | Juniper | 15.1-f6-s1 (including) | 15.1-f6-s1 (including) |
| Junos | Juniper | 15.1-f6-s12 (including) | 15.1-f6-s12 (including) |
| Junos | Juniper | 15.1-f6-s2 (including) | 15.1-f6-s2 (including) |
| Junos | Juniper | 15.1-f6-s3 (including) | 15.1-f6-s3 (including) |
| Junos | Juniper | 15.1-f6-s4 (including) | 15.1-f6-s4 (including) |
| Junos | Juniper | 15.1-f6-s7 (including) | 15.1-f6-s7 (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-r4-s7 (including) | 15.1-r4-s7 (including) |
| Junos | Juniper | 15.1-r4-s8 (including) | 15.1-r4-s8 (including) |
| Junos | Juniper | 15.1-r4-s9 (including) | 15.1-r4-s9 (including) |
| Junos | Juniper | 15.1-r5 (including) | 15.1-r5 (including) |
| Junos | Juniper | 15.1-r5-s1 (including) | 15.1-r5-s1 (including) |
| Junos | Juniper | 15.1-r5-s5 (including) | 15.1-r5-s5 (including) |
| Junos | Juniper | 15.1-r5-s6 (including) | 15.1-r5-s6 (including) |
| Junos | Juniper | 15.1-r6 (including) | 15.1-r6 (including) |
| Junos | Juniper | 15.1-r6-s1 (including) | 15.1-r6-s1 (including) |
| Junos | Juniper | 15.1-r6-s2 (including) | 15.1-r6-s2 (including) |
| Junos | Juniper | 15.1-r6-s6 (including) | 15.1-r6-s6 (including) |
| Junos | Juniper | 15.1-r7 (including) | 15.1-r7 (including) |
| Junos | Juniper | 15.1-r7-s1 (including) | 15.1-r7-s1 (including) |
| Junos | Juniper | 15.1-r7-s2 (including) | 15.1-r7-s2 (including) |
| Junos | Juniper | 15.1-r7-s3 (including) | 15.1-r7-s3 (including) |
| Junos | Juniper | 15.1-r7-s4 (including) | 15.1-r7-s4 (including) |
| Junos | Juniper | 15.1-r7-s5 (including) | 15.1-r7-s5 (including) |
| Junos | Juniper | 15.1-r7-s6 (including) | 15.1-r7-s6 (including) |
| Junos | Juniper | 15.1-r7-s7 (including) | 15.1-r7-s7 (including) |
| Junos | Juniper | 15.1-r7-s8 (including) | 15.1-r7-s8 (including) |
| Junos | Juniper | 17.3 (including) | 17.3 (including) |
| Junos | Juniper | 17.3-r1-s1 (including) | 17.3-r1-s1 (including) |
| Junos | Juniper | 17.3-r2 (including) | 17.3-r2 (including) |
| Junos | Juniper | 17.3-r2-s1 (including) | 17.3-r2-s1 (including) |
| Junos | Juniper | 17.3-r2-s2 (including) | 17.3-r2-s2 (including) |
| Junos | Juniper | 17.3-r2-s3 (including) | 17.3-r2-s3 (including) |
| Junos | Juniper | 17.3-r2-s4 (including) | 17.3-r2-s4 (including) |
| Junos | Juniper | 17.3-r2-s5 (including) | 17.3-r2-s5 (including) |
| Junos | Juniper | 17.3-r3 (including) | 17.3-r3 (including) |
| Junos | Juniper | 17.3-r3-s1 (including) | 17.3-r3-s1 (including) |
| Junos | Juniper | 17.3-r3-s10 (including) | 17.3-r3-s10 (including) |
| Junos | Juniper | 17.3-r3-s2 (including) | 17.3-r3-s2 (including) |
| Junos | Juniper | 17.3-r3-s3 (including) | 17.3-r3-s3 (including) |
| Junos | Juniper | 17.3-r3-s4 (including) | 17.3-r3-s4 (including) |
| Junos | Juniper | 17.3-r3-s5 (including) | 17.3-r3-s5 (including) |
| Junos | Juniper | 17.3-r3-s6 (including) | 17.3-r3-s6 (including) |
| Junos | Juniper | 17.3-r3-s7 (including) | 17.3-r3-s7 (including) |
| Junos | Juniper | 17.3-r3-s8 (including) | 17.3-r3-s8 (including) |
| Junos | Juniper | 17.3-r3-s9 (including) | 17.3-r3-s9 (including) |
| Junos | Juniper | 17.4 (including) | 17.4 (including) |
| Junos | Juniper | 17.4-r1 (including) | 17.4-r1 (including) |
| Junos | Juniper | 17.4-r1-s1 (including) | 17.4-r1-s1 (including) |
| Junos | Juniper | 17.4-r1-s2 (including) | 17.4-r1-s2 (including) |
| Junos | Juniper | 17.4-r1-s4 (including) | 17.4-r1-s4 (including) |
| Junos | Juniper | 17.4-r1-s5 (including) | 17.4-r1-s5 (including) |
| Junos | Juniper | 17.4-r1-s6 (including) | 17.4-r1-s6 (including) |
| Junos | Juniper | 17.4-r1-s7 (including) | 17.4-r1-s7 (including) |
| Junos | Juniper | 17.4-r2 (including) | 17.4-r2 (including) |
| Junos | Juniper | 17.4-r2-s1 (including) | 17.4-r2-s1 (including) |
| Junos | Juniper | 17.4-r2-s10 (including) | 17.4-r2-s10 (including) |
| Junos | Juniper | 17.4-r2-s2 (including) | 17.4-r2-s2 (including) |
| Junos | Juniper | 17.4-r2-s3 (including) | 17.4-r2-s3 (including) |
| Junos | Juniper | 17.4-r2-s4 (including) | 17.4-r2-s4 (including) |
| Junos | Juniper | 17.4-r2-s5 (including) | 17.4-r2-s5 (including) |
| Junos | Juniper | 17.4-r2-s6 (including) | 17.4-r2-s6 (including) |
| Junos | Juniper | 17.4-r2-s7 (including) | 17.4-r2-s7 (including) |
| Junos | Juniper | 17.4-r2-s8 (including) | 17.4-r2-s8 (including) |
| Junos | Juniper | 17.4-r2-s9 (including) | 17.4-r2-s9 (including) |
| Junos | Juniper | 17.4-r3 (including) | 17.4-r3 (including) |
| Junos | Juniper | 17.4-r3-s1 (including) | 17.4-r3-s1 (including) |
| Junos | Juniper | 17.4-r3-s2 (including) | 17.4-r3-s2 (including) |
| Junos | Juniper | 18.1 (including) | 18.1 (including) |
| Junos | Juniper | 18.1-r1 (including) | 18.1-r1 (including) |
| Junos | Juniper | 18.1-r2 (including) | 18.1-r2 (including) |
| Junos | Juniper | 18.1-r2-s1 (including) | 18.1-r2-s1 (including) |
| Junos | Juniper | 18.1-r2-s2 (including) | 18.1-r2-s2 (including) |
| Junos | Juniper | 18.1-r2-s4 (including) | 18.1-r2-s4 (including) |
| Junos | Juniper | 18.1-r3 (including) | 18.1-r3 (including) |
| Junos | Juniper | 18.1-r3-s1 (including) | 18.1-r3-s1 (including) |
| Junos | Juniper | 18.1-r3-s10 (including) | 18.1-r3-s10 (including) |
| Junos | Juniper | 18.1-r3-s2 (including) | 18.1-r3-s2 (including) |
| Junos | Juniper | 18.1-r3-s3 (including) | 18.1-r3-s3 (including) |
| Junos | Juniper | 18.1-r3-s4 (including) | 18.1-r3-s4 (including) |
| Junos | Juniper | 18.1-r3-s6 (including) | 18.1-r3-s6 (including) |
| Junos | Juniper | 18.1-r3-s7 (including) | 18.1-r3-s7 (including) |
| Junos | Juniper | 18.1-r3-s8 (including) | 18.1-r3-s8 (including) |
| Junos | Juniper | 18.1-r3-s9 (including) | 18.1-r3-s9 (including) |
| Junos | Juniper | 18.2 (including) | 18.2 (including) |
| Junos | Juniper | 18.2-r1 (including) | 18.2-r1 (including) |
| Junos | Juniper | 18.2-r1-s3 (including) | 18.2-r1-s3 (including) |
| Junos | Juniper | 18.2-r1-s4 (including) | 18.2-r1-s4 (including) |
| Junos | Juniper | 18.2-r1-s5 (including) | 18.2-r1-s5 (including) |
| Junos | Juniper | 18.2-r2 (including) | 18.2-r2 (including) |
| Junos | Juniper | 18.2-r2-s1 (including) | 18.2-r2-s1 (including) |
| Junos | Juniper | 18.2-r2-s2 (including) | 18.2-r2-s2 (including) |
| Junos | Juniper | 18.2-r2-s3 (including) | 18.2-r2-s3 (including) |
| Junos | Juniper | 18.2-r2-s4 (including) | 18.2-r2-s4 (including) |
| Junos | Juniper | 18.2-r2-s5 (including) | 18.2-r2-s5 (including) |
| Junos | Juniper | 18.2-r2-s6 (including) | 18.2-r2-s6 (including) |
| Junos | Juniper | 18.2-r3 (including) | 18.2-r3 (including) |
| Junos | Juniper | 18.2-r3-s1 (including) | 18.2-r3-s1 (including) |
| Junos | Juniper | 18.2-r3-s2 (including) | 18.2-r3-s2 (including) |
| Junos | Juniper | 18.2-r3-s3 (including) | 18.2-r3-s3 (including) |
| Junos | Juniper | 18.2-r3-s4 (including) | 18.2-r3-s4 (including) |
| Junos | Juniper | 18.2-r3-s5 (including) | 18.2-r3-s5 (including) |
| Junos | Juniper | 18.3 (including) | 18.3 (including) |
| Junos | Juniper | 18.3-r1 (including) | 18.3-r1 (including) |
| Junos | Juniper | 18.3-r1-s1 (including) | 18.3-r1-s1 (including) |
| Junos | Juniper | 18.3-r1-s2 (including) | 18.3-r1-s2 (including) |
| Junos | Juniper | 18.3-r1-s3 (including) | 18.3-r1-s3 (including) |
| Junos | Juniper | 18.3-r1-s5 (including) | 18.3-r1-s5 (including) |
| Junos | Juniper | 18.3-r1-s6 (including) | 18.3-r1-s6 (including) |
| Junos | Juniper | 18.3-r2 (including) | 18.3-r2 (including) |
| Junos | Juniper | 18.3-r2-s1 (including) | 18.3-r2-s1 (including) |
| Junos | Juniper | 18.3-r2-s2 (including) | 18.3-r2-s2 (including) |
| Junos | Juniper | 18.3-r2-s3 (including) | 18.3-r2-s3 (including) |
| Junos | Juniper | 18.3-r2-s4 (including) | 18.3-r2-s4 (including) |
| Junos | Juniper | 18.3-r3 (including) | 18.3-r3 (including) |
| Junos | Juniper | 18.3-r3-s1 (including) | 18.3-r3-s1 (including) |
| Junos | Juniper | 18.3-r3-s2 (including) | 18.3-r3-s2 (including) |
| Junos | Juniper | 18.3-r3-s3 (including) | 18.3-r3-s3 (including) |
| Junos | Juniper | 18.4 (including) | 18.4 (including) |
| Junos | Juniper | 18.4-r1 (including) | 18.4-r1 (including) |
| Junos | Juniper | 18.4-r1-s1 (including) | 18.4-r1-s1 (including) |
| Junos | Juniper | 18.4-r1-s2 (including) | 18.4-r1-s2 (including) |
| Junos | Juniper | 18.4-r1-s5 (including) | 18.4-r1-s5 (including) |
| Junos | Juniper | 18.4-r1-s6 (including) | 18.4-r1-s6 (including) |
| Junos | Juniper | 18.4-r2 (including) | 18.4-r2 (including) |
| Junos | Juniper | 18.4-r2-s1 (including) | 18.4-r2-s1 (including) |
| Junos | Juniper | 18.4-r2-s2 (including) | 18.4-r2-s2 (including) |
| Junos | Juniper | 18.4-r2-s3 (including) | 18.4-r2-s3 (including) |
| Junos | Juniper | 18.4-r2-s4 (including) | 18.4-r2-s4 (including) |
| Junos | Juniper | 18.4-r2-s5 (including) | 18.4-r2-s5 (including) |
| Junos | Juniper | 18.4-r2-s6 (including) | 18.4-r2-s6 (including) |
| Junos | Juniper | 18.4-r3 (including) | 18.4-r3 (including) |
| Junos | Juniper | 18.4-r3-s1 (including) | 18.4-r3-s1 (including) |
| Junos | Juniper | 18.4-r3-s2 (including) | 18.4-r3-s2 (including) |
| Junos | Juniper | 18.4-r3-s3 (including) | 18.4-r3-s3 (including) |
| Junos | Juniper | 18.4-r3-s4 (including) | 18.4-r3-s4 (including) |
| Junos | Juniper | 18.4-r3-s5 (including) | 18.4-r3-s5 (including) |
| Junos | Juniper | 19.1 (including) | 19.1 (including) |
| Junos | Juniper | 19.1-r1 (including) | 19.1-r1 (including) |
| Junos | Juniper | 19.1-r1-s1 (including) | 19.1-r1-s1 (including) |
| Junos | Juniper | 19.1-r1-s2 (including) | 19.1-r1-s2 (including) |
| Junos | Juniper | 19.1-r1-s3 (including) | 19.1-r1-s3 (including) |
| Junos | Juniper | 19.1-r1-s4 (including) | 19.1-r1-s4 (including) |
| Junos | Juniper | 19.1-r1-s5 (including) | 19.1-r1-s5 (including) |
| Junos | Juniper | 19.1-r2 (including) | 19.1-r2 (including) |
| Junos | Juniper | 19.1-r2-s1 (including) | 19.1-r2-s1 (including) |
| Junos | Juniper | 19.1-r3 (including) | 19.1-r3 (including) |
| Junos | Juniper | 19.1-r3-s1 (including) | 19.1-r3-s1 (including) |
| Junos | Juniper | 19.1-r3-s2 (including) | 19.1-r3-s2 (including) |
| Junos | Juniper | 19.1-r3-s3 (including) | 19.1-r3-s3 (including) |
| Junos | Juniper | 19.2 (including) | 19.2 (including) |
| Junos | Juniper | 19.2-r1 (including) | 19.2-r1 (including) |
| Junos | Juniper | 19.2-r1-s1 (including) | 19.2-r1-s1 (including) |
| Junos | Juniper | 19.2-r1-s2 (including) | 19.2-r1-s2 (including) |
| Junos | Juniper | 19.2-r1-s3 (including) | 19.2-r1-s3 (including) |
| Junos | Juniper | 19.2-r1-s4 (including) | 19.2-r1-s4 (including) |
| Junos | Juniper | 19.2-r1-s5 (including) | 19.2-r1-s5 (including) |
| Junos | Juniper | 19.2-r3 (including) | 19.2-r3 (including) |
| Junos | Juniper | 19.3 (including) | 19.3 (including) |
| Junos | Juniper | 19.3-r1 (including) | 19.3-r1 (including) |
| Junos | Juniper | 19.3-r1-s1 (including) | 19.3-r1-s1 (including) |
| Junos | Juniper | 19.3-r2 (including) | 19.3-r2 (including) |
| Junos | Juniper | 19.3-r2-s1 (including) | 19.3-r2-s1 (including) |
| Junos | Juniper | 19.3-r2-s2 (including) | 19.3-r2-s2 (including) |
| Junos | Juniper | 19.3-r2-s3 (including) | 19.3-r2-s3 (including) |
| Junos | Juniper | 19.3-r2-s4 (including) | 19.3-r2-s4 (including) |
| Junos | Juniper | 19.3-r3 (including) | 19.3-r3 (including) |
| Junos | Juniper | 19.4-r1 (including) | 19.4-r1 (including) |
| Junos | Juniper | 19.4-r1-s1 (including) | 19.4-r1-s1 (including) |
| Junos | Juniper | 19.4-r1-s2 (including) | 19.4-r1-s2 (including) |
| Junos | Juniper | 19.4-r2 (including) | 19.4-r2 (including) |
| Junos | Juniper | 19.4-r2-s1 (including) | 19.4-r2-s1 (including) |
| Junos | Juniper | 19.4-r3 (including) | 19.4-r3 (including) |
| Junos | Juniper | 20.1-r1 (including) | 20.1-r1 (including) |
| Junos | Juniper | 20.1-r1-s1 (including) | 20.1-r1-s1 (including) |
| Junos | Juniper | 20.1-r1-s2 (including) | 20.1-r1-s2 (including) |
| Junos | Juniper | 20.1-r1-s3 (including) | 20.1-r1-s3 (including) |
| Junos | Juniper | 20.2-r1 (including) | 20.2-r1 (including) |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/104.html
- https://cwe.mitre.org/data/definitions/470.html
- https://cwe.mitre.org/data/definitions/69.html