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CVE-2024-20256

Quick assessment

Affected
Cisco Cisco Secure Web Appliance
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.

Cisco AsyncOS是美国思科（Cisco）公司的一款应用于思科设备的操作系统。 Cisco AsyncOS Software for Cisco Secure Email、 Web Manager存在安全漏洞，该漏洞源于对用户输入的验证不足，允许经过身份验证的远程攻击者对该界面的用户进行跨站脚本攻击。

CVSS 4.8 · Medium EPSS 0.29% · P22
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I. Basic Information for CVE-2024-20256

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager and Secure Web Appliance could allow an authenticated, remote attacker to conduct an XSS attack against a user of the interface. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco AsyncOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco AsyncOS是美国思科（Cisco）公司的一款应用于思科设备的操作系统。 Cisco AsyncOS Software for Cisco Secure Email、 Web Manager存在安全漏洞，该漏洞源于对用户输入的验证不足，允许经过身份验证的远程攻击者对该界面的用户进行跨站脚本攻击。
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
Cisco Cisco Secure Web Appliance 11.7.0-406 -
Cisco Cisco Secure Email and Web Manager 9.0.0-087 -

II. Public POCs for CVE-2024-20256

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III. Intelligence Information for CVE-2024-20256

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Vendor Advisories for CVE-2024-20256 (1)

Same Patch Batch · Cisco · 2024-05-15 · 9 CVEs total

CVE-2024-20366 7.8 HIGH Cisco Crosswork Network Services Orchestrator 安全漏洞
CVE-2024-20391 6.8 MEDIUM Cisco Secure Client 安全漏洞
CVE-2024-20258 6.1 MEDIUM Cisco AsyncOS 安全漏洞
CVE-2024-20392 6.1 MEDIUM Cisco AsyncOS 安全漏洞
CVE-2024-20394 5.5 MEDIUM Cisco AppDynamics Network Visibility Agent 安全漏洞
CVE-2024-20383 4.8 MEDIUM Cisco Secure Email and Web Manager Stored Cross-Site Scripting Vulnerability
CVE-2024-20257 4.8 MEDIUM Cisco AsyncOS 安全漏洞
CVE-2024-20369 4.7 MEDIUM Cisco Crosswork Network Services Orchestrator 安全漏洞

IV. Related Vulnerabilities

Same product: Cisco Secure Web Appliance
Same vendor: Cisco
Same weakness: CWE-79

V. Comments for CVE-2024-20256

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