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CVE-2023-45612

Quick assessment

Affected
JetBrains Ktor
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

JetBrains Ktor framework是捷克JetBrains公司的一款Web应用程序框架。 JetBrains Ktor 2.3.5之前版本存在代码问题漏洞，该漏洞源于ContentNegotiation默认配置存在XML外部实体注入（XXE）漏洞。

CVSS 8.6 · High EPSS 0.60% · P47

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-45612

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5
Vulnerability Title
JetBrains Ktor 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JetBrains Ktor framework是捷克JetBrains公司的一款Web应用程序框架。 JetBrains Ktor 2.3.5之前版本存在代码问题漏洞，该漏洞源于ContentNegotiation默认配置存在XML外部实体注入（XXE）漏洞。
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
JetBrains Ktor 0 ~ 2.3.5 -

II. Public POCs for CVE-2023-45612

# POC Description Source Link Shenlong Link
1 Proof-of-Concept of CVE-2023-45612 https://github.com/bbugdigger/ktor-xxe-poc POC Details
2 None https://github.com/infernosalex/CVE-2023-45612-PoC POC Details
3 PoC for CVE-2023-45612 https://github.com/aecelen/ktor-xxe-poc POC Details
4 Reproduction of a high severty security problem that allows XXE (XML eXternal Entity) attacks on Ktor's XML serialization. https://github.com/clemfavre/cve-2023-45612_exploit POC Details
5 CVE-2023-45612 POC and vulnerable project. https://github.com/seraphimi/ktor-xxe POC Details
6 This repository provides a Proof of Concept for CVE-2023-45612, demonstrating an XML External Entity (XXE) injection vulnerability in JetBrains Ktor versions prior to 2.3.5. https://github.com/razvanclaudiu/Ktor-XXE-PoC POC Details
7 Ktor XXE Injection Proof-of-Concept (CVE-2023-45612) https://github.com/stefan-500/ktor-cve-2023-45612-poc POC Details
8 Proof of concept for XXE in Ktor (CVE-2023-45612) https://github.com/ksaweryr/CVE-2023-45612-PoC POC Details
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III. Intelligence Information for CVE-2023-45612

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Vendor Pages for CVE-2023-45612 (1)

IV. Related Vulnerabilities

Same product: Ktor
Same vendor: JetBrains
Same weakness: CWE-611

V. Comments for CVE-2023-45612

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