Mailcow Docker Container Exposure to Local Network
CVE-2024-24760

8.8HIGH

Key Information:

Vendor

Mailcow

Status
Mailcow-dockerized
Vendor
CVE Published:
2 February 2024

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2024-24760?

A vulnerability in the Mailcow email package allows for potential access to Docker container ports on the same subnet. This issue impacts versions prior to 2024-01c, where ports bound to 127.0.0.1 may remain exposed. Attackers within the same local network can exploit this weakness, making sensitive services reachable. The Mailcow team has implemented enhanced security measures through added iptables/nftables rules, which are intended to mitigate this risk. These rules effectively block packets directed towards specific Docker container ports (3306, 6379, 8983, and 12345) when the incoming interface does not match 'br-mailcow' and the outgoing interface is 'br-mailcow'.

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Deploy the Patch

Affected Version(s)

mailcow-dockerized < 2024-01c

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2024-24760
Created by killerbees19

References

https://github.com/mailcow/mailcow-dockerized/security/ad...
x_refsource_CONFIRM
https://github.com/mailcow/mailcow-dockerized/commit/0874...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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