CVE-2017-16878 Cross Site Scripting in PAN-OS Captive Portal
Attack Vector
NETWORK
Scope
CHANGED
Attack Complexity
LOW
Confidentiality Impact
LOW
Privileges Required
NONE
Integrity Impact
LOW
User Interaction
REQUIRED
Availability Impact
NONE
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)
Successful exploitation of this issue may allow an attacker to inject arbitrary javascript or HTML.
This issue affects PAN-OS 8.0.6-h3 and earlier.
Product Status
| 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.
Acknowledgments
Palo Alto Networks would like to thank Shaun Wheelhouse for reporting this issue to us.