Algorithm confusion in lepture Authlib
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2024-37568 |
| CWE-ID | CWE-310 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
authlib Universal components / Libraries / Libraries used by multiple products |
| Vendor | lepture (Hsiaoming Yang) |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Cryptographic issues
EUVDB-ID: #VU91832
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2024-37568
CWE-ID:
CWE-310 - Cryptographic Issues
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to algorithm confusion with asymmetric public keys. Unless an algorithm is specified in a jwt.decode call, HMAC verification is allowed with any asymmetric public key.
MitigationInstall updates from vendor's website.
Vulnerable software versionsauthlib: 0.1 - 1.3.0
CPE2.3- cpe:2.3:a:lepture:authlib:1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:lepture:authlib:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:lepture:authlib:1.2.0:*:*:*:*:*:*:*
http://github.com/lepture/authlib/issues/654
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
