Vulnerability identifier: #VU74469

Vulnerability risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28842

CWE-ID: CWE-420

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
moby
Server applications / Virtualization software

Vendor: Moby project

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to unprotected alternate channel within encrypted overlay networks. A remote attacker can inject arbitrary Ethernet frames into the encrypted overlay network by encapsulating them in VXLAN datagrams.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

moby: 23.0.0 - 23.0.2, 20.10.0 - 20.10.23, 19.03.0 - 19.03.15, 18.09.0 - 18.09.9, 1.13.0 - 1.13.1, 1.12.0 - 1.12.6

---

External links
http://github.com/moby/moby/security/advisories/GHSA-6wrf-mxfj-pf5p
http://github.com/moby/libnetwork/security/advisories/GHSA-gvm4-2qqg-m333
http://github.com/moby/moby/security/advisories/GHSA-232p-vwff-86mp
http://github.com/moby/moby/security/advisories/GHSA-vwm3-crmr-xfxw
http://github.com/moby/moby/security/advisories/GHSA-33pg-m6jh-5237

---

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.