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CVE-2021-3731— Improper Restriction of Rendered UI Layers or Frames in ledgersmb/ledgersmb

Quick assessment

Affected
ledgersmb ledgersmb/ledgersmb
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.

LedgerSMB是一个免费的基于网络的复式记账系统，具有报价、订购、发票、项目、考勤卡、库存管理、运输等功能。 LedgerSMB 存在安全漏洞，该漏洞源于应用没有充分防止被其他站点包裹，使其容易受到"clickjacking"的影响。这允许攻击者欺骗目标用户执行意外操作。

CVSS 5.9 · Medium EPSS 1.11% · P63

Possible ATT&CK Techniques 1 AI

T1566.001 · Spearphishing Attachment
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I. Basic Information for CVE-2021-3731

Vulnerability Information
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Vulnerability Title
Improper Restriction of Rendered UI Layers or Frames in ledgersmb/ledgersmb
Source: CVE Program / CVE List V5
Vulnerability Description
LedgerSMB does not sufficiently guard against being wrapped by other sites, making it vulnerable to 'clickjacking'. This allows an attacker to trick a targetted user to execute unintended actions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不当限制渲染UI层或帧
Source: CVE Program / CVE List V5
Vulnerability Title
LedgerSMB 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LedgerSMB是一个免费的基于网络的复式记账系统，具有报价、订购、发票、项目、考勤卡、库存管理、运输等功能。 LedgerSMB 存在安全漏洞，该漏洞源于应用没有充分防止被其他站点包裹，使其容易受到"clickjacking"的影响。这允许攻击者欺骗目标用户执行意外操作。
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
ledgersmb ledgersmb/ledgersmb 1.7.33 -

II. Public POCs for CVE-2021-3731

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III. Intelligence Information for CVE-2021-3731

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Vendor Advisories for CVE-2021-3731 (2)

Same Patch Batch · ledgersmb · 2021-08-23 · 3 CVEs total

CVE-2021-3693 8.8 HIGH Cross-site Scripting (XSS) - DOM in ledgersmb/ledgersmb
CVE-2021-3694 8.2 HIGH Cross-site Scripting (XSS) - Reflected in ledgersmb/ledgersmb

IV. Related Vulnerabilities

Same product: ledgersmb/ledgersmb
Same vendor: ledgersmb
Same weakness: CWE-1021

V. Comments for CVE-2021-3731

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