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CVE-2023-4012— Incomplete Internal State Distinction in ntpsec

Quick assessment

Affected
NTPsec ntpsec
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.

NTPsec是一个更安全的NTP。 NTPsec 存在安全漏洞，该漏洞源于当 NTS 被禁用并且接收到一个启用 NTS 的客户端请求（模式 3）时，ntpd 可能会崩溃。

CVSS 7.5 · High EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 1

VendorProduct Version RangeStatus
NTPsec ntpsec 1.2.2 affected
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I. Basic Information for CVE-2023-4012

Vulnerability Information
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Vulnerability Title
Incomplete Internal State Distinction in ntpsec
Source: CVE Program / CVE List V5
Vulnerability Description
ntpd will crash if the server is not NTS-enabled (no certificate) and it receives an NTS-enabled client request (mode 3).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的内部状态区分
Source: CVE Program / CVE List V5
Vulnerability Title
NTPsec 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NTPsec是一个更安全的NTP。 NTPsec 存在安全漏洞，该漏洞源于当 NTS 被禁用并且接收到一个启用 NTS 的客户端请求（模式 3）时，ntpd 可能会崩溃。
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
NTPsec ntpsec 1.2.2 -

II. Public POCs for CVE-2023-4012

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III. Intelligence Information for CVE-2023-4012

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Vendor Advisories for CVE-2023-4012 (1)

Mailing List Discussions for CVE-2023-4012 (2)

Other References for CVE-2023-4012 (1)

IV. Related Vulnerabilities

Same product: ntpsec
Same vendor: NTPsec
Same weakness: CWE-372

V. Comments for CVE-2023-4012

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