Fotinet FortiOS 5.6/6.0 URL/SPAM/AV hard-coded credentials

Summaryinfo

A vulnerability marked as critical has been reported in Fotinet FortiOS 5.6/6.0. This impacts an unknown function of the component URL/SPAM/AV. The manipulation leads to hard-coded credentials. This vulnerability is referenced as CVE-2018-9195. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Fotinet FortiOS 5.6/6.0 (Firewall Software). This issue affects an unknown code of the component URL/SPAM/AV. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. Using CWE to declare the problem leads to CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. Impacted is confidentiality. The summary by CVE is:

Use of a hardcoded cryptographic key in the FortiGuard services communication protocol may allow a Man in the middle with knowledge of the key to eavesdrop on and modify information (URL/SPAM services in FortiOS 5.6, and URL/SPAM/AV services in FortiOS 6.0.; URL rating in FortiClient) sent and received from Fortiguard severs by decrypting these messages.

The weakness was published 11/21/2019 as FG-IR-18-100 (Website). The advisory is shared at fortiguard.com. The identification of this vulnerability is CVE-2018-9195 since 04/02/2018. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1110.001 for this issue.

A public exploit has been developed by Stefan Viehböck in Python and been published 4 days after the advisory. The exploit is available at sec-consult.com. It is declared as proof-of-concept.

Upgrading to version 6.2.0 eliminates this vulnerability. The upgrade is hosted for download at fortiguard.com. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Firewall Software

Vendor

• Fotinet

Name

• FortiOS

Version

• 5.6
• 6.0

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

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