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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3426 FortiOS HTTPD is vulnerable to a Stack-based Buffer Overflow vulnerability 2 October 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: FortiOS Publisher: Fortinet Operating System: Network Appliance Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-17656 Original Bulletin: https://fortiguard.com/psirt/FG-IR-19-248 - --------------------------BEGIN INCLUDED TEXT-------------------- FortiOS HTTPD is vulnerable to a Stack-based Buffer Overflow vulnerability IR Number : FG-IR-19-248 Date : Oct 01, 2020 Risk : 3/5 Impact : Crash of the HTTPD service. CVE ID : CVE-2019-17656 CVE ID : CVE-2019-17656 Summary A Stack-based Buffer Overflow vulnerability in the HTTPD daemon of FortiOS may allow an authenticated remote attacker to crash the service by sending a malformed PUT request to the server. Fortinet is not aware of any successful exploitation of this vulnerability that would lead to code execution. Impact Crash of the HTTPD service. Affected Products FortiOS versions 6.0.10 and below. FortiOS versions 6.2.2 and below. Solutions Please upgrade to FortiGate version 6.0.11 or above. Please upgrade to FortiGate version 6.2.3 or above. Please upgrade to FortiGate version 6.4.0 or above. Acknowledgement Fortinet is pleased to thank Cody Sixteen ( https://code610.blogspot.com/) for reporting this issue under responsible disclosure. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBX3ZnzuNLKJtyKPYoAQi0aA//YxnPNE8zuZ8pg4vwqXLZxg0iPHy4/PlG cQ0QMnSaRRMe9CispVOiFZABCtDXvZS1PdRWacsQKP9ZxOYww3QKmGCZSawXzSbn jbF4Nee5Z2WsWHwQELzG50skyHmmgqeT6yMdYWJZT6pAYwDzs9jzD4T40dD8SuOn dyyDOAkdtEspPGAj/B0LfQdVEiyOryNipgqMt6/uKwo4d+GzJsY3301uTCcQyfb5 mq6ADecOREwD6LHml/Npuoxlh8mtpr+aTPQKryvTHdj0cLKhFPFxO4X6vUm6Yb3x aizMBJAJQJYzG2LKGyNv79gombJWK/oDazTpYnJv2qBu8rehcwcNGOfh+JSjcXeD B/YjdINkuhclMp/AM9nhHkJF4e58I1AOkBm7KJiJmGeupNKypi8V9ChpCZ5NtnNR /tNg/HMvDrFd9WWEZmmyxu0jKCAK1l85euao2QO/sjwlGK/n7s5jTtgO0OUdjYoU tnuynS/YYGzQTt6hyJuDVtNsH4IBoy9UcMTlEl60R66KPw2bWujzvzXd6G+4m1+q tv0RUscD/6yJ+jGtCm0gAgHKSRP80ylOpjioAqcArH5oRlKAuDJL4Uv6eqUMfv+b Dx2pBbNObjmhQhn9AwiNCs/TnJ1iTSgeYbQrGTVOOsgiHCTw7TdnTWbvz6AQC/2A kH01nXi3KtE= =ap/b -----END PGP SIGNATURE-----