CVE-2022-24402
Intentionally weakened effective strength in TETRA TEA1
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
The TETRA TEA1 keystream generator implements a key register initialization function that compresses the 80-bit key to only 32 bits for usage during the keystream generation phase, which is insufficient to safeguard against exhaustive search attacks.
| CWE | CWE-334 |
| Vendor | etsi |
| Product | tetra standard |
| Published | Oct 19, 2023 |
| Last Updated | Sep 12, 2024 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C/CR:H/IR:H/AR:H/MAV:A/MAC:L/MPR:N/MUI:N/MS:U/MC:H/MI:H/MA:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
ETSI / TETRA Standard
TEA1
Credits
Midnight Blue