CVE-2024-21771— F5 AFM Signature Matching Vulnerability
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I. Basic Information for CVE-2024-21771
Vulnerability Information
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Vulnerability Title
F5 AFM Signature Matching Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
For unspecified traffic patterns, BIG-IP AFM IPS engine may spend an excessive amount of time matching the traffic against signatures, resulting in Traffic Management Microkernel (TMM) restarting and traffic disruption. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
F5 BIG-IP AFM 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F5 BIG-IP AFM是美国F5公司的一款用于防护DDos攻击的高级防火墙产品。 F5 BIG-IP AFM 存在安全漏洞，该漏洞源于对于未指定的流量模式，BIG-IP AFM IPS 引擎可能会花费过多的时间将流量与签名进行匹配，从而导致流量管理微内核 (TMM) 重新启动和流量中断。
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
II. Public POCs for CVE-2024-21771
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://my.f5.com/manage/s/article/K000137595vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2024-21771
Same Patch Batch · F5 · 2024-02-14 · 20 CVEs total
| CVE-2024-22093 | 8.7 HIGH | Appliance mode iControl REST vulnerability |
| CVE-2024-21763 | 7.5 HIGH | BIG-IP AFM vulnerability |
| CVE-2024-23979 | 7.5 HIGH | BIG-IP SSL Client Certificate LDAP and CRLDP Authentication profiles vulnerability |
| CVE-2024-21849 | 7.5 HIGH | BIG-IP Websockets vulnerability |
| CVE-2024-23314 | 7.5 HIGH | BIG-IP HTTP/2 vulnerability |
| CVE-2024-24775 | 7.5 HIGH | BIG-IP TMM vulnerability |
| CVE-2024-23805 | 7.5 HIGH | F5 Application Visibility and Reporting module and BIG-IP Advanced WAF/ASM vulnerability |
| CVE-2024-23308 | 7.5 HIGH | BIG-IP Advanced WAF and ASM vulnerability |
| CVE-2024-21789 | 7.5 HIGH | BIG-IP ASM and Advanced WAF vulnerability |
| CVE-2024-24990 | 7.5 HIGH | NGINX HTTP/3 QUIC vulnerability |
| CVE-2024-24989 | 7.5 HIGH | NGINX HTTP/3 QUIC vulnerability |
| CVE-2024-23982 | 7.5 HIGH | BIG-IP PEM vulnerability |
| CVE-2024-22389 | 7.2 HIGH | BIG-IP iControl REST API Vulnerability |
| CVE-2024-23306 | 7.1 HIGH | BIG-IP Next CNF & SPK vulnerability |
| CVE-2024-21782 | 6.7 MEDIUM | BIG-IP and BIG-IQ secure copy vulnerability |
| CVE-2024-24966 | 6.2 MEDIUM | F5OS vulnerability |
| CVE-2024-23976 | 6.0 MEDIUM | BIG-IP Appliance mode iAppsLX vulnerability |
| CVE-2024-23607 | 5.5 MEDIUM | F5OS QKView utility vulnerability |
| CVE-2024-23603 | 3.8 LOW | BIG-IP Advanced WAF and ASM Configuration utility vulnerability |
IV. Related Vulnerabilities
Same weakness: CWE-770
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ZEBRA: Permanent Block Discovery Halt via Gossip Queue Satur - CVE-2026-44500
ZEBRA: Allocation Amplification in Inbound Network Deseriali
V. Comments for CVE-2024-21771
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