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CVE-2023-54403— Yonyou U8 CRM Arbitrary File Read via getemaildata.php

Quick assessment

Affected
Yonyou U8 CRM
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.

用友 U8 CRM 在 V16.5 之前及 V18 版本中存在任意文件读取漏洞，位于 。未经身份验证的攻击者可以利用 参数绕过认证，并通过未经验证的 参数读取任意文件。攻击者可利用此漏洞读取 Web 应用目录之外的敏感文件，包括包含数据库或服务凭据的配置文件。该漏洞的首次利用证据由 Shadowserver 基金会于 2023-10-14 发现。

CVSS 7.5 · High
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I. Basic Information for CVE-2023-54403

Vulnerability Information
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Vulnerability Title
Yonyou U8 CRM Arbitrary File Read via getemaildata.php
Source: CVE Program / CVE List V5
Vulnerability Description
Yonyou U8 CRM before V16.5 and V18 contains an arbitrary file read vulnerability in /ajax/getemaildata.php that allows unauthenticated attackers to bypass authentication using the DontCheckLogin=1 parameter and read arbitrary files via an unvalidated filePath parameter. Attackers can exploit this flaw to read sensitive files outside the web application directory, including configuration files containing database or service credentials. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Yonyou U8 CRM 16.1 -

II. Public POCs for CVE-2023-54403

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III. Intelligence Information for CVE-2023-54403

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Vendor Pages for CVE-2023-54403 (1)

Other References for CVE-2023-54403 (4)

IV. Related Vulnerabilities

Same product: U8 CRM
Same vendor: Yonyou
Same weakness: CWE-22

V. Comments for CVE-2023-54403

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