A vulnerability in the HTTP/HTTPS service used by J-Web, Web Authentication, Dynamic-VPN (DVPN), Firewall Authentication Pass-Through with Web-Redirect, and Captive Portal allows an unauthenticated attacker to cause an extended Denial of Service (DoS) for these services by sending a high number of specific requests. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S17 on EX Series; 12.3X48 versions prior to 12.3X48-D105 on SRX Series; 15.1 versions prior to 15.1R7-S8; 15.1X49 versions prior to 15.1X49-D230 on SRX Series; 16.1 versions prior to 16.1R7-S8; 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-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2; 20.2 versions prior to 20.2R1-S1, 20.2R2.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| 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-r10-s1 (including) | 12.3-r10-s1 (including) |
| Junos | Juniper | 12.3-r10-s2 (including) | 12.3-r10-s2 (including) |
| Junos | Juniper | 12.3-r11 (including) | 12.3-r11 (including) |
| Junos | Juniper | 12.3-r12 (including) | 12.3-r12 (including) |
| Junos | Juniper | 12.3-r12-s1 (including) | 12.3-r12-s1 (including) |
| Junos | Juniper | 12.3-r12-s10 (including) | 12.3-r12-s10 (including) |
| Junos | Juniper | 12.3-r12-s11 (including) | 12.3-r12-s11 (including) |
| Junos | Juniper | 12.3-r12-s12 (including) | 12.3-r12-s12 (including) |
| Junos | Juniper | 12.3-r12-s13 (including) | 12.3-r12-s13 (including) |
| Junos | Juniper | 12.3-r12-s14 (including) | 12.3-r12-s14 (including) |
| Junos | Juniper | 12.3-r12-s15 (including) | 12.3-r12-s15 (including) |
| Junos | Juniper | 12.3-r12-s16 (including) | 12.3-r12-s16 (including) |
| Junos | Juniper | 12.3-r12-s3 (including) | 12.3-r12-s3 (including) |
| Junos | Juniper | 12.3-r12-s4 (including) | 12.3-r12-s4 (including) |
| Junos | Juniper | 12.3-r12-s6 (including) | 12.3-r12-s6 (including) |
| Junos | Juniper | 12.3-r12-s8 (including) | 12.3-r12-s8 (including) |