#VU98769 Incorrect Resource Transfer Between Spheres in CoreDNS - CVE-2022-2837

Vulnerability identifier: #VU98769

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-2837

CWE-ID: CWE-669

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CoreDNS
Server applications / DNS servers

Vendor: CoreDNS

Description

The vulnerability allows a remote user to redirect traffic.

The vulnerability exists due to improper sanitization of user-supplied data. A remote user can redirect traffic intended for external top-level domains (TLD) to a pod they control by creating projects and namespaces that match the TLD.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CoreDNS: All versions

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=2118543

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.