CVE-2020-1637

Junos OS: SRX Series: Unified Access Control (UAC) bypass vulnerability

State
Published
Severity
7.2 High
Published
Apr 8, 2020
Updated
Sep 16, 2024
Reserved
Nov 4, 2019

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Description

A vulnerability in Juniper Networks SRX Series device configured as a Junos OS Enforcer device may allow a user to access network resources that are not permitted by a UAC policy. This issue might occur when the IP address range configured in the Infranet Controller (IC) is configured as an IP address range instead of an IP address/netmask. See the Workaround section for more detail. The Junos OS Enforcer CLI settings are disabled by default. This issue affects Juniper Networks Junos OS on SRX Series: 12.3X48 versions prior to 12.3X48-D100; 15.1X49 versions prior to 15.1X49-D210; 17.3 versions prior to 17.3R2-S5, 17.3R3-S8; 17.4 versions prior to 17.4R2-S9, 17.4R3-S1; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3; 18.3 versions prior to 18.3R1-S7, 18.3R3-S2; 18.4 versions prior to 18.4R1-S6, 18.4R2-S4, 18.4R3-S1; 19.1 versions prior to 19.1R1-S4, 19.1R2-S1, 19.1R3; 19.2 versions prior to 19.2R1-S3, 19.2R2; 19.3 versions prior to 19.3R2-S1, 19.3R3; 19.4 versions prior to 19.4R1-S1, 19.4R2.

Scores

CVSSScoreVectorSource
3.17.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Njuniper

Weaknesses

  • CWE-288 Authentication Bypass Using an Alternate Path or Channel

Affected Products

ProductVersions
Junos OSJuniper Networks
  • 12.3X48 to before 12.3X48-D100Affected
  • 15.1X49 to before 15.1X49-D210Affected
  • 17.3 to before 17.3R2-S5, 17.3R3-S8Affected
  • 17.4 to before 17.4R2-S9, 17.4R3-S1Affected
  • 18.1 to before 18.1R3-S10Affected
  • 18.2 to before 18.2R2-S7, 18.2R3-S3Affected
  • 18.3 to before 18.3R1-S7, 18.3R3-S2Affected
  • 18.4 to before 18.4R1-S6, 18.4R2-S4, 18.4R3-S1Affected
  • 19.1 to before 19.1R1-S4, 19.1R2-S1, 19.1R3Affected
  • 19.2 to before 19.2R1-S3, 19.2R2Affected
  • 19.3 to before 19.3R2-S1, 19.3R3Affected
  • 19.4 to before 19.4R1-S1, 19.4R2Affected

References

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