CVEvulnerability

CVE-2021-32033

4.6 MEDIUM Published 2021-06-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.6 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
1.9 LOW — AV:L/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-335

Description

Protectimus SLIM NFC 70 10.01 devices allow a Time Traveler attack in which attackers can predict TOTP passwords in certain situations. The time value used by the device can be set independently from the used seed value for generating time-based one-time passwords, without authentication. Thus, an attacker with short-time physical access to a device can set the internal real-time clock (RTC) to the future, generate one-time passwords, and reset the clock to the current time. This allows the generation of valid future time-based one-time passwords without having further access to the hardware token.

Affected configurations

• protectimus slim nfc 70 firmware 10.01

Related

Weakness · CWE (1)

  • CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG) weakness

References