#VU85658 Insufficient verification of data authenticity in systemd - CVE-2023-7008

Vulnerability identifier: #VU85658

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-7008

CWE-ID: CWE-345

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
systemd
Server applications / Other server solutions

Vendor: Freedesktop.org

Description

The vulnerability allows a remote attacker to perform a MitM attack.

The vulnerability exists due to systemd-resolved accepts records of DNSSEC-signed domains even when they have no signature. A remote attacker can perform MitM attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

systemd: All versions

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External links
https://access.redhat.com/security/cve/CVE-2023-7008
https://bugzilla.redhat.com/show_bug.cgi?id=2222261
https://bugzilla.redhat.com/show_bug.cgi?id=2222672
https://github.com/systemd/systemd/issues/25676

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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.