Insufficient Entropy in Werkzeug

1) Insufficient Entropy

EUVDB-ID: #VU30827

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14806

CWE-ID: CWE-331 - Insufficient Entropy

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

Pallets Werkzeug before 0.15.3, when used with Docker, has insufficient debugger PIN randomness because Docker containers share the same machine id.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Werkzeug: 0.15.0 - 0.15.2

External links

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00047.html
http://github.com/pallets/werkzeug/blob/7fef41b120327d3912fbe12fb64f1951496fcf3e/src/werkzeug/debug/__init__.py#L168
http://github.com/pallets/werkzeug/commit/00bc43b1672e662e5e3b8cecd79e67fc968fa246
http://palletsprojects.com/blog/werkzeug-0-15-3-released/

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.