MitM attack in wolfSSL



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-330
Exploitation vector Network
Public exploit N/A
Vulnerable software
 wolfSSL
Universal components / Libraries / Libraries used by multiple products

Vendor wolfSSL

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Use of insufficiently random values

EUVDB-ID: #VU59164

Risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-330 - Use of Insufficiently Random Values

Exploit availability: No

Description

The vulnerability allows a remote attacker to decrypt TLS session.

The vulnerability exists in wolfSSL implementation when using AES-CBC or DES3 with TLS/DTLS 1.2 or 1.1. The initialization vector used is not random, which may allow an attacker to decrypt the TLS session or perform MitM attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

wolfSSL: 5.0.0 - 5.1.0

CPE2.3 External links

https://github.com/wolfSSL/wolfssl/releases/tag/v5.1.1-stable


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.



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