| |
Vulnerability CVE-2021-28484
Published: 2021-04-14
| Description: |
An issue was discovered in the /api/connector endpoint handler in Yubico yubihsm-connector before 3.0.1 (in YubiHSM SDK before 2021.04). The handler did not validate the length of the request, which can lead to a state where yubihsm-connector becomes stuck in a loop waiting for the YubiHSM to send it data, preventing any further operations until the yubihsm-connector is restarted. An attacker can send 0, 1, or 2 bytes to trigger this. |
Type:
CWE-835 (Loop with Unreachable Exit Condition ('Infinite Loop'))
CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)
| CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
5/10 |
2.9/10 |
10/10 |
| Exploit range |
Attack complexity |
Authentication |
Remote |
Low |
No required |
| Confidentiality impact |
Integrity impact |
Availability impact |
None |
None |
Partial |
References: |
https://github.com/Yubico/yubihsm-connector/releases
https://www.yubico.com/support/security-advisories/ysa-2021-02/
|
|
|
Copyright 2024, cxsecurity.com
|
|
|
