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CVE-2023-7008— Systemd-resolved: unsigned name response in signed zone is not refused when dnssec=yes

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 8
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

systemd是德国Lennart Poettering个人开发者的一款基于Linux的系统和服务管理器。该产品兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd systemd-resolved 存在安全漏洞，该漏洞源于可能允许 systemd-resolved 接受 DNSSEC 签名域的记录。

CVSS 5.9 · Medium EPSS 0.85% · P57
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I. Basic Information for CVE-2023-7008

Vulnerability Information
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Vulnerability Title
Systemd-resolved: unsigned name response in signed zone is not refused when dnssec=yes
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in systemd-resolved. This issue may allow systemd-resolved to accept records of DNSSEC-signed domains even when they have no signature, allowing man-in-the-middles (or the upstream DNS resolver) to manipulate records.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通道可被非端点访问(中间人攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
systemd 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
systemd是德国Lennart Poettering个人开发者的一款基于Linux的系统和服务管理器。该产品兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd systemd-resolved 存在安全漏洞，该漏洞源于可能允许 systemd-resolved 接受 DNSSEC 签名域的记录。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 8 0:239-82.el8 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 9 0:252-32.el9_4 ~ * cpe:/a:redhat:enterprise_linux:9::crb
Red Hat Red Hat Enterprise Linux 9 0:252-32.el9_4 ~ * cpe:/a:redhat:enterprise_linux:9::crb
Red Hat Cryostat 2 - cpe:/a:redhat:cryostat:2

II. Public POCs for CVE-2023-7008

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III. Intelligence Information for CVE-2023-7008

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Vendor Advisories for CVE-2023-7008 (4)

Mailing List Discussions for CVE-2023-7008 (2)

Other References for CVE-2023-7008 (1)

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 8
Same vendor: Red Hat
Same weakness: CWE-300

V. Comments for CVE-2023-7008

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