CVE-2022-26943
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/10/2023
Last modified:
07/11/2023
Description
The Motorola MTM5000 series firmwares generate TETRA authentication challenges using a PRNG using a tick count register as its sole entropy source. Low boottime entropy and limited re-seeding of the pool renders the authentication challenge vulnerable to two attacks. First, due to the limited boottime pool entropy, an adversary can derive the contents of the entropy pool by an exhaustive search of possible values, based on an observed authentication challenge. Second, an adversary can use knowledge of the entropy pool to predict authentication challenges. As such, the unit is vulnerable to CVE-2022-24400.
Impact
Base Score 3.x
8.80
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:motorola:mtm5500_firmware:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:motorola:mtm5500:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:motorola:mtm5400_firmware:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:motorola:mtm5400:-:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page