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CVE-2018-5541

Quick assessment

Affected
F5 Networks, Inc. BIG-IP (ASM)
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.

F5 BIG-IP ASM（Application Security Manager）是美国F5公司的一款Web应用程序防火墙（WAF），它提供安全的远程接入、保护电子邮件、简化Web接入控制，同时增强网络和应用性能。 F5 BIG-IP ASM中存在安全漏洞。攻击者可借助大量的参数利用该漏洞占用大量的CPU。以下版本受到影响：F5 BIG-IP ASM 13.0.0版本至13.1.0.1版本，12.1.0版本至12.1.3.5版本，11.6.0版本至11.6.3.1版本，11.5.1版本至11.5.6版

AI Predicted 7.5 Difficulty: Moderate EPSS 1.82% · P79

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2018-5541

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
When F5 BIG-IP ASM 13.0.0-13.1.0.1, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.5.1-11.5.6 is processing HTTP requests, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
F5 BIG-IP ASM 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F5 BIG-IP ASM（Application Security Manager）是美国F5公司的一款Web应用程序防火墙（WAF），它提供安全的远程接入、保护电子邮件、简化Web接入控制，同时增强网络和应用性能。 F5 BIG-IP ASM中存在安全漏洞。攻击者可借助大量的参数利用该漏洞占用大量的CPU。以下版本受到影响：F5 BIG-IP ASM 13.0.0版本至13.1.0.1版本，12.1.0版本至12.1.3.5版本，11.6.0版本至11.6.3.1版本，11.5.1版本至11.5.6版
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
F5 Networks, Inc. BIG-IP (ASM) 13.0.0-13.1.0.1 -

II. Public POCs for CVE-2018-5541

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III. Intelligence Information for CVE-2018-5541

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Vendor Advisories for CVE-2018-5541 (2)

Same Patch Batch · F5 Networks, Inc. · 2018-07-25 · 8 CVEs total

CVE-2018-5530 F5 BIG-IP虚拟服务器安全漏洞
CVE-2018-5531 F5 BIG-IP 安全漏洞
CVE-2018-5536 F5 BIG-IP Access Policy Manager虚拟服务器安全漏洞
CVE-2018-5537 F5 BIG-IP 安全漏洞
CVE-2018-5538 F5 BIG-IP DNS 安全漏洞
CVE-2018-5539 F5 BIG-IP ASM 输入验证错误漏洞
CVE-2018-5542 F5 BIG-IP HTTPS health monitors 安全漏洞

IV. Related Vulnerabilities

Same product: BIG-IP (ASM)
Same vendor: F5 Networks, Inc.