title: PAN-OS: Passwords may be logged in clear text when using after-change-detail custom syslog field for config logs
description: An information exposure through log file vulnerability where sensitive fields are recorded in the configuration log without masking on Palo Alto Networks PAN-OS software when the after-change-detail custom syslog field is enabled for configuration logs and the sensitive field appears multiple times in one log entry. The first instance of the sensitive field is masked but subsequent instances are left in clear text. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.16; PAN-OS 9.0 versions earlier than PAN-OS 9.0.10; PAN-OS 9.1 versions earlier than PAN-OS 9.1.4.
problem types: CWE-532 Information Exposure Through Log Files
affected:
{
product: PAN-OS
vendor: Palo Alto Networks
versions:
changes: [at: 8.1.16, status: unaffected], lessThan: 8.1.16, status: affected, version: 8.1, versionType: custom
changes: [at: 9.0.10, status: unaffected], lessThan: 9.0.10, status: affected, version: 9.0, versionType: custom
changes: [at: 9.1.4, status: unaffected], lessThan: 9.1.4, status: affected, version: 9.1, versionType: custom
lessThan: 10.0*, status: unaffected, version: 10.0.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 3.3
baseSeverity: LOW
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
version: 3.1
]
solutions: This issue is fixed in PAN-OS 8.1.16, PAN-OS 9.0.10, PAN-OS 9.1.4, and all later PAN-OS versions.
workarounds: This issue requires access to PAN-OS log files generated in the system. You can mitigate the impact of this issue by following best practices for securing the PAN-OS management interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at https://docs.paloaltonetworks.com/best-practices.