Palo Alto Networks Security Advisories
CVE-2017-16878 CVE-2017-16878 Cross Site Scripting in PAN-OS Captive Portal
Attack Vector NETWORK
Attack Complexity LOW
Privileges Required NONE
User Interaction REQUIRED
Confidentiality Impact LOW
Integrity Impact LOW
Availability Impact NONE NVD JSON Published 2018-01-02 Updated 2020-06-23
Reference PAN-85238 PAN-SA-2017-0031 Discovered externally Description
A vulnerability exists in PAN-OS Captive Portal that could allow for a cross-site scripting (XSS) attack to be performed against clients viewing the captive portal page when configured in a certain way. (Ref # PAN-85238 / CVE-2017-16878)
This issue affects PAN-OS 8.0.6-h3 and earlier.
Versions Affected Unaffected PAN-OS 8.0 <= 8.0.6-h3 >= 8.0.7 Severity: MEDIUM
CVSSv3.1 Base Score: 6.1 (
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) Weakness Type CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Solution
PAN-OS 8.0.7 and later.
Workarounds and Mitigations
Customers not using the Captive Portal function within PAN-OS are not impacted by this vulnerability.
Palo Alto Networks would like to thank Shaun Wheelhouse for reporting this issue to us.
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