Medium severity · published Jul 7, 2020
CVE-2020-15509
Nordic Semiconductor Android BLE Library through 2.2.1 and DFU Library through 1.10.4 for Android (as used by nRF Connect and other applications) can engage in unencrypted…
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
Nordic Semiconductor Android BLE Library through 2.2.1 and DFU Library through 1.10.4 for Android (as used by nRF Connect and other applications) can engage in unencrypted communication while showing the user that the communication is purportedly encrypted. The problem is in bond creation (e.g., internalCreateBond in BleManagerHandler).
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AB
Android Ble Library · Nordicsemi
through 2.2.1 · source: NVD
DL
Dfu Library · Nordicsemi
through 1.10.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15509
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-15509
Patch
https://github.com/NordicSemiconductor/Android-BLE-Library/commits/master
Patch
https://github.com/NordicSemiconductor/Android-DFU-Library/commits/release
Patch
https://secretdiary.ninja/index.php/2020/07/03/norec-attack-stripping-ble-encryption-from-nordicsemis-android-library-cve-2020-15509/