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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2021-0261

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

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Juniper Networks Junos OS

  • 12.3 to < 12.3R12-S17affected

Juniper Networks Junos OS

  • 12.3X48 to < 12.3X48-D105affected
  • 15.1X49 to < 15.1X49-D230affected

Juniper Networks Junos OS

  • 15.1 to < 15.1R7-S8affected
  • 16.1 to < 16.1R7-S8affected
  • 17.4 to < 17.4R2-S12, 17.4R3-S3affected
  • 18.1 to < 18.1R3-S11affected
  • 18.2 to < 18.2R3-S6affected
  • 18.3 to < 18.3R2-S4, 18.3R3-S3affected
  • 18.4 to < 18.4R2-S5, 18.4R3-S4affected
  • 19.1 to < 19.1R2-S2, 19.1R3-S2affected
  • 19.2 to < 19.2R1-S5, 19.2R3affected
  • 19.3 to < 19.3R2-S4, 19.3R3affected
  • 19.4 to < 19.4R1-S3, 19.4R2-S2, 19.4R3affected
  • 20.1 to < 20.1R1-S3, 20.1R2affected
  • 20.2 to < 20.2R1-S1, 20.2R2affected

References