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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4388 Denial of Service vulnerability impacts the SSL VPN service of FortiOS. 20 November 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: FortiOS Publisher: FortiGuard Operating System: FortiOS Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-15705 Original Bulletin: https://fortiguard.com/psirt/FG-IR-19-236 - --------------------------BEGIN INCLUDED TEXT-------------------- Denial of Service vulnerability impacts the SSL VPN service of FortiOS. IR Number : FG-IR-19-236 Date : Nov 08, 2019 Risk : 3/5 Impact : Denial of Service CVE ID : CVE-2019-15705 Summary An Improper Input Validation vulnerability in the SSL VPN portal of FortiOS may allow an unauthenticated remote attacker to crash the SSL VPN service by sending a crafted POST request. Impact Denial of Service Affected Products FortiOS versions 6.2.1 and below. FortiOS versions 6.0.6 and below. Solutions Please upgrade to FortiOS version 6.2.2 and above. Please upgrade to FortiOS version 6.0.7 and above. Acknowledgement Fortinet is pleased to thank Qingtang Zheng from CodeSafe Team of Legendsec at Qi'anXin Group for bringing this issue to our attention 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 iQIVAwUBXdSXTmaOgq3Tt24GAQgruxAAplohDP1mP2ZBY7a2atyDB2dRlFR+86ea 6icfvTP+vViTjis3V0daoCdu9DUEgPsKDjQnG/exTMEsIj4xRV8LgLKLz6cFJqYe UslS0y8+VpNEb7DuypxP+Ucu1fsCknD0Ky1lmUgsD+xEE3NIaCghR0Pat9czNwjE qW0uychCUvs2w/cDfNyIBWlz0T0YS5zo0XVIy04XaemxGZ9pOAIQgkGGBMtKe0WZ amXvVAACWIG0OM4qqiV5g3EBy22qlvE135w6tj5qXvUiOrjJuJayzV8o7ss6qg0Y RxyKnMeP+fzrrtL+km2YIJ0MV7XoLjpfZSJxHj2wRvj9Jv0vi2Gu8FA4qGSPuMua 5ZBTIGCy/N0Ppzv1TvmA2iFBwuRxRYCeX3MYMo8x8XbT5QR2u8OMm+a8fVJgXFaK E/L0VjlDVyAm8vS9DHN2m824CJ8VjWxvrvlh8Pr3WbWbAwPLXwycjrNF6BuUPwEE saJGZkrNjiEqbu5CUaQmFH32RodimKitASVYApY8pdpnGXGv1JgcDi9N3q27QewV 4I5X/l2vIJyWedvZr5h0bQWU6NIyNIzLlVa6V4Msx9Do2BEnv9ucVJXO+pCrkYUw Q01RiAOCp3s/tncSyxto4qbJt7LjqUsqLhb9QhegfEz2ZGLgBiQpnq+TJ30q/iPi 4tICndzbYiE= =VDCk -----END PGP SIGNATURE-----