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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1899 Multiple Products - Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification (FragAttacks) 2 June 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: FortiAP FortiAP-S FortiAP-W2 FortiAP-U Meru AP Publisher: FortiGuard Labs Operating System: Network Appliance Impact/Access: Access Confidential Data -- Remote/Unauthenticated Reduced Security -- Remote/Unauthenticated Resolution: None CVE Names: CVE-2020-26139 Reference: ESB-2021.1628 ESB-2021.1627.2 Original Bulletin: https://fortiguard.com/psirt/FG-IR-21-071 Comment: The fixes will be introduced in the upcoming versions. - --------------------------BEGIN INCLUDED TEXT-------------------- Multiple Products - Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification (FragAttacks) IR Number : FG-IR-21-071 Date : Jun 01, 2021 Risk : 2/5 CVSSv3 Score : 0 Impact : Information Disclosure or Exposure of Internal Resources CVE ID : CVE-2020-26139 Summary On May 11th, 2021, Mathy Vanhoef (New York University Abu Dhabi) published a new paper, Fragment and Forge: Breaking Wi-Fi Through Frame Aggregation and Fragmentation , on a number of vulnerabilities in the base 802.11 protocol (802.11 is the standard that Wi-Fi is built on). The paper discloses three design flaws in the 802.11 standard and nine common implementation flaws related to aggregation and fragmentation functionality. These vulnerabilities could allow an attacker to forge encrypted frames, which could in turn enable the exfiltration of sensitive data from a targeted device. Impact Information Disclosure or Exposure of Internal Resources Affected Products FortiAP versions 4.x, 5.x, 6.x and 7.0.0 FortiAP-C versions 5.4.0 through 5.4.2 FortiAP-S versions 5.x and 6.x before 6.4.5 FortiAP-U versions 5.x and 6.x before 6.2.1 FortiAP-W2 versions 5.x, 6.x and 7.0.0 Meru AP versions 6.x, 7.x and 8.x before 8.6.1 Solutions FortiAP: Fix in upcoming version 7.0.1 FortiAP-S: Fix in upcoming version 7.0.1 FortiAP-W2: Fix in upcoming version 7.0.1 FortiAP-U: Fix in upcoming version 6.2.2 Meru AP: Fix in upcoming version 8.6.2 This section will be updated as additional information becomes available. References o The FragAttacks paper can be accessed via the following link: o https://papers.mathyvanhoef.com/usenix2021.pdf o For more information about the vulnerabilities: o https://www.fragattacks.com/ - --------------------------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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYLcPmuNLKJtyKPYoAQh4dQ//ZbV6pMXcG8LrNu2tVH5EZE6WpPJ0RvkT kEfqpRD3+Hp5OPY/bETgDcs9JIiLag5SGOyvo0oX9Ot2loOMGS22oPkcQjbL8pm/ ArLtfmAIPDM1mhS7wAc9xUwak9UbMQWz/z0G6Jgj+9viE2Uqy1ZxdH3KqjuLAxSG bVGxj0wgLG62I+UGj/Ua2J7hg4WQqZHprxT9rWwMOt90LB/cB9v/XhG74jQaX2z+ 5xiankNRiW6mZVHtM79oHwgC6booxNvpbWzFZuc+Z+Aky/Y9G20Aky9ZxBDKF8ye BTU6dachCR7fZK/K7QRVGEa0gYh4wVkYwYxsrocgHBZa4Y28ZHaErU7fA6AwqLqw RGLUAWApI6MXavjFSSzjxEceu7dMwm+oBJUKG9y+pkTVIn2by7iC8PKCHcq9Ncyv 0WlL6l1Of2WSGKVE4A1njbtJXNgeHhEQfg1fEhLVm3izb1SwtP8u0z8MnV85LnuC C8L/2XUUshvsUL1JbHVRz+q5culViB+z7nM49nXoOWjFNZqHLd7QZqksIWU5uccX 5s+Ahy+gUWVZ1HOaj5FVP5oiAZXFqLvXj5/BFovmO5qq6NX0lUjNwUClJnY7ky0b otXYXU6RCZZPmLjE7L9WRQQUIiOJPk9GM5/Nda4klTgqgbFU4v1XZbVoXtaGEM4N 6XzHNskJ8uk= =J57Z -----END PGP SIGNATURE-----