Palo Alto Networks Security Advisories / CVE-2017-6356

CVE-2017-6356 Information Disclosure in Terminal Server Agent

Severity 5.3 · MEDIUM
Attack Vector NETWORK
Attack Complexity LOW
Confidentiality Impact LOW
Privileges Required NONE
Integrity Impact NONE
User Interaction NONE
Availability Impact NONE


An information disclosure vulnerability exists in the Terminal Server (TS) agent. Session information may be disclosed due to insecure permissions (WINAGENT-43 / CVE-2017-6356).

The information disclosure is limited to session information.

This issue affects TS agent 6.0, TS agent 7.0, and TS agent 8.0.

Product Status

Terminal Server Agent 8.0None>= 8.0.1

Severity: MEDIUM

CVSSv3.1 Base Score: 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Weakness Type

CWE-732 Incorrect Permission Assignment for Critical Resource


TS agent 8.0.1 and later releases.

We recommend customers use custom certificates when using the TS agent. Further details on using customer certificates can be reviewed at:

Workarounds and Mitigations

TS agent is fully backwards compatible with all currently supported versions of PAN-OS software. Customers using TS agents 6.0 and 7.0 can use TS agent 8.0.1.

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