Junos OS: Denial of Service vulnerability in J-Web and web based (HTTP/HTTPS) services caused by a high number of specific requests

Summary

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.

Timeline

1. Apr 22, 2021, 7:37 PM UTCCVE published
2. Sep 16, 2024, 7:57 PM UTCRecord last updated

Affected versions

• Juniper Networks Junos OS

  From 12.3 · fixed in 12.3R12-S17

• Juniper Networks Junos OS

  From 12.3X48 · fixed in 12.3X48-D105; From 15.1X49 · fixed in 15.1X49-D230

• Juniper Networks Junos OS

  From 15.1 · fixed in 15.1R7-S8; From 16.1 · fixed in 16.1R7-S8; From 18.1 · fixed in 18.1R3-S11; From 18.2 · fixed in 18.2R3-S6

References 1