CVE-2018-0682 Missing authorization in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier)

Critical 9.8 Published 15 Nov 2018 Updated 5 Aug 2024

Remote attackers can read or send mail and modify configuration due to improper session management in Denbun mail servers.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-0682?

CVE-2018-0682 is a critical missing authorization vulnerability in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier), published on 15 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier) does not properly manage sessions, which allows remote attackers to read/send mail or change the configuration via unspecified vectors.

Which versions are affected by CVE-2018-0682?

It affects 2 products.

Products include Neo Debun Imap, Neo Debun Pop.

How do I fix CVE-2018-0682?

No fix has been published for CVE-2018-0682 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-0682 being exploited?

There is no known exploitation of CVE-2018-0682 in the wild and no public exploit code.

Sources

Also known as GHSA-qc9x-2m26-6c5h.