Spoofing attack in GNU Mailman



| Updated: 2020-06-05
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-12108
CWE-ID CWE-451
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Mailman
Web applications / Webmail solutions

Vendor GNU

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Spoofing attack

EUVDB-ID: #VU28635

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-12108

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data when processing email addresses. A remote attacker can create a specially crafted email and spoof content of email message.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mailman: 2.1.1 - 2.1.30

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2020-05/msg00036.html
https://lists.opensuse.org/opensuse-security-announce/2020-06/msg00003.html
https://bugs.launchpad.net/mailman/+bug/1873722
https://code.launchpad.net/mailman
https://lists.debian.org/debian-lts-announce/2020/05/msg00007.html
https://mail.python.org/pipermail/mailman-announce/
https://usn.ubuntu.com/4354-1/


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. However, proof of concept for this vulnerability is available.



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