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CVE-2023-6199— Book Stack v23.10.2 - LFR via Blind SSRF

Quick assessment

Affected
BookStack BookStack
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.

BookStack是BookStack公司的一个简单、自托管、易于使用的平台。用于组织和存储信息。 BookStack 23.10.2版本存在代码问题漏洞，该漏洞源于允许过滤服务器上的本地文，导致应用程序容易受到 SSRF 的攻击。

CVSS 6.5 · Medium EPSS 1.38% · P72

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-6199

Vulnerability Information
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Vulnerability Title
Book Stack v23.10.2 - LFR via Blind SSRF
Source: CVE Program / CVE List V5
Vulnerability Description
Book Stack version 23.10.2 allows filtering local files on the server. This is possible because the application is vulnerable to SSRF.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
BookStack 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BookStack是BookStack公司的一个简单、自托管、易于使用的平台。用于组织和存储信息。 BookStack 23.10.2版本存在代码问题漏洞，该漏洞源于允许过滤服务器上的本地文，导致应用程序容易受到 SSRF 的攻击。
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
BookStack BookStack 23.10.2 -

II. Public POCs for CVE-2023-6199

# POC Description Source Link Shenlong Link
1 A CLI to exploit parameters vulnerable to PHP filter chain error based oracle, modified to exploit CVE-2023-6199 https://github.com/AbdrrahimDahmani/php_filter_chains_oracle_exploit_for_CVE-2023-6199 POC Details
2 PoC scripts to exploit LFR (Local File Read) via PHP filters chain oracle (php://filter), especially for CTF purposes or the exploit of CVE-2023-6199, etc. This's a one-script exploitation PoC modified from https://github.com/synacktiv/php_filter_chains_oracle_exploit https://github.com/4xura/php_filter_chain_oracle_poc POC Details
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III. Intelligence Information for CVE-2023-6199

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Vendor Advisories for CVE-2023-6199 (1)

Security Blog Posts for CVE-2023-6199 (1)

IV. Related Vulnerabilities

Same product: BookStack
Same vendor: BookStack
Same weakness: CWE-918

V. Comments for CVE-2023-6199

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