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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1439 Authentication bypass in FortiWAN 28 April 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: FortiWAN Publisher: FortiGuard Operating System: Network Appliance Impact/Access: Administrator Compromise -- Remote/Unauthenticated Delete Arbitrary Files -- Remote/Unauthenticated Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2021-26102 Original Bulletin: https://fortiguard.com/psirt/FG-IR-21-048 - --------------------------BEGIN INCLUDED TEXT-------------------- Authentication bypass in FortiWAN IR Number : FG-IR-21-048 Date : Apr 27, 2021 Risk : 5/5 CVSSv3 Score : 9.8 Impact : Authentication bypass CVE ID : CVE-2021-26102 Summary A relative path traversal vulnerability (CWE-23) in FortiWAN may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value. Impact Authentication bypass Affected Products FortiWAN versions 4.5.7 and below. Solutions Please upgrade to FortiWAN upcoming version 4.5.8 or above. Please upgrade to FortiWAN version 5.1.1 or above. Workaround: Instead of allowing administrative access from any source, restrict it to trusted internal hosts. Acknowledgement Fortinet is pleased to thank a customer who brought this issue to our attention. - --------------------------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 iQIVAwUBYIi5SONLKJtyKPYoAQgtmQ/9Hf3P2kyOT781497Ypo7UtiHUbs1AKZ7X /ZqR2DfW6IIFWDrBAhwoulGphhIDYwYtk3IqSWkop/uvo5bLLhrtfH7XxTGcG+xp gMyYCTvDpUMsbS/XrbOget6AcUmKe0Z5fATLMxoFtmpAV5cKwXZVCK487xLK++5d QMkjK4O1kv1uuOdzw1yHn5cEJVkQZsCuJaKey7AonECIVUSpB0tBzuPfM7VbHFAN XpVRROgYQMarQvXahKGzb4zjsOFUWyg9wn96tN/l0dzzu+piqLSk6nyEwXSx5Xhc ArEumJyfWXVHo8v2bbTBrjsQJ7K1kGBPo4Xh5torSC8FJxV9Ss/jPDken1Og/+bK 9NGDF7GliKOG43sLnrYNwy5xy21tcxq+R3MyAWIvZr4Kl1M9YaliMEFRtTgbk2iX eB+iyfLiSp0OGfE9rN22ZLmj/B1WvLmjEqevGj60AAcJRrn17o9GQzF6PbGbMAsx 1UAG0hGxK/7m/XfvEZ+TY6Ofep6zvfV1PyVFSxnPg+GALqAkPei27wyPwohx7w54 QYqoz+UYf+zxKRSzAcv0QixvnNhj8CkWeEWb00/3aIwhmC7AmSqCLCoJLEswv5Ix d+ZbAGiRhHnluxS01jtGRo/wfy262oUkdeYh1S2uBvCvN52vVazFVuHn2kdjUyom IU2pOQ65tK8= =9FXZ -----END PGP SIGNATURE-----