cve-2020-16630
Vulnerability from cvelistv5
Published
2021-09-20 19:20
Modified
2024-08-04 13:45
Severity ?
Summary
TI’s BLE stack caches and reuses the LTK’s property for a bonded mobile. A LTK can be an unauthenticated-and-no-MITM-protection key created by Just Works or an authenticated-and-MITM-protection key created by Passkey Entry, Numeric Comparison or OOB. Assume that a victim mobile uses secure pairing to pair with a victim BLE device based on TI chips and generate an authenticated-and-MITM-protection LTK. If a fake mobile with the victim mobile’s MAC address uses Just Works and pairs with the victim device, the generated LTK still has the property of authenticated-and-MITM-protection. Therefore, the fake mobile can access attributes with the authenticated read/write permission.
References
cve@mitre.orghttp://software-dl.ti.com/simplelink/esd/simplelink_cc13x2_26x2_sdk/3.20.00.68/exports/changelog.htmlVendor Advisory
cve@mitre.orghttps://www.usenix.org/system/files/sec20-zhang-yue.pdfExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://software-dl.ti.com/simplelink/esd/simplelink_cc13x2_26x2_sdk/3.20.00.68/exports/changelog.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.usenix.org/system/files/sec20-zhang-yue.pdfExploit, Third Party Advisory
Impacted products
Vendor Product Version
n/a n/a Version: n/a
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