title: Junos OS: Path traversal vulnerability in J-Web
description: A path traversal vulnerability in the Juniper Networks Junos OS device may allow an authenticated J-web user to read files with 'world' readable permission and delete files with 'world' writeable permission. This issue does not affect system files that can be accessed only by root user. This issue affects Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S13; 12.3X48 versions prior to 12.3X48-D85 on SRX Series; 14.1X53 versions prior to 14.1X53-D51; 15.1F6 versions prior to 15.1F6-S13; 15.1 versions prior to 15.1R7-S5; 15.1X49 versions prior to 15.1X49-D180 on SRX Series; 15.1X53 versions prior to 15.1X53-D238 on QFX5200/QFX5110 Series; 16.1 versions prior to 16.1R4-S13, 16.1R7-S5; 16.2 versions prior to 16.2R2-S10; 17.1 versions prior to 17.1R3-S1; 17.2 versions prior to 17.2R1-S9, 17.2R3-S2; 17.3 versions prior to 17.3R2-S5, 17.3R3-S5; 17.4 versions prior to 17.4R2-S9, 17.4R3; 18.1 versions prior to 18.1R3-S8; 18.2 versions prior to 18.2R3; 18.3 versions prior to 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R2; 19.1 versions prior to 19.1R1-S4, 19.1R2.
problem types: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
affected:
{
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 12.3R12-S13, status: affected, version: 12.3, versionType: custom
lessThan: 14.1X53-D51, status: affected, version: 14.1X53, versionType: custom
lessThan: 15.1F6-S13, status: affected, version: 15.1F6, versionType: custom
lessThan: 15.1R7-S5, status: affected, version: 15.1, versionType: custom
lessThan: 16.1R4-S13, 16.1R7-S5, status: affected, version: 16.1, versionType: custom
lessThan: 16.2R2-S10, status: affected, version: 16.2, versionType: custom
lessThan: 17.1R3-S1, status: affected, version: 17.1, versionType: custom
lessThan: 17.2R1-S9, 17.2R3-S2, status: affected, version: 17.2, versionType: custom
lessThan: 17.3R2-S5, 17.3R3-S5, status: affected, version: 17.3, versionType: custom
lessThan: 17.4R2-S9, 17.4R3, status: affected, version: 17.4, versionType: custom
lessThan: 18.1R3-S8, status: affected, version: 18.1, versionType: custom
lessThan: 18.2R3, status: affected, version: 18.2, versionType: custom
lessThan: 18.3R2-S3, 18.3R3, status: affected, version: 18.3, versionType: custom
lessThan: 18.4R2, status: affected, version: 18.4, versionType: custom
lessThan: 19.1R1-S4, 19.1R2, status: affected, version: 19.1, versionType: custom
}
{
platforms: SRX Series
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 12.3X48-D85, status: affected, version: 12.3X48, versionType: custom
lessThan: 15.1X49-D180, status: affected, version: 15.1X49, versionType: custom
}
{
platforms: QFX5200/QFX5110 Series
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 15.1X53-D238, status: affected, version: 15.1X53, versionType: custom
}
{
platforms: EX2300/EX3400 Series
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 15.1X53-D592, status: affected, version: 15.1X53, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.4
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
version: 3.1
]
exploits: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
solutions: The following software releases have been updated to resolve this specific issue: 12.3R12-S13, 12.3X48-D85, 14.1X53-D51, 15.1F6-S13, 15.1R7-S5, 15.1X49-D180, 15.1X53-D238, 16.1R4-S13, 16.1R7-S5, 16.2R2-S10, 17.1R3-S1, 17.2R1-S9, 17.2R3-S2, 17.3R2-S5, 17.3R3-S5, 17.4R2-S9, 17.4R3, 18.1R3-S8, 18.2R3, 18.3R2-S3, 18.3R3, 18.4R2, 19.1R1-S4, 19.1R2, 19.2R1, and all subsequent releases.
workarounds: Limit access to the J-Web interface to only trusted users to reduce risks of exploitation of this vulnerability.