CVE-2021-41585— ATS stops accepting connections on FreeBSD
Quick assessment
Affected
Apache Software Foundation Apache Traffic Server
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.
Apache Traffic Server（ATS）是美国阿帕奇（Apache）基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic 5.0.0至9.1.0版本存在安全漏洞，该漏洞源于程序没有对套接字连接进行正确解析。以下产品及版本受到影响：Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-41585
Vulnerability Information
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Vulnerability Title
ATS stops accepting connections on FreeBSD
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Input Validation vulnerability in accepting socket connections in Apache Traffic Server allows an attacker to make the server stop accepting new connections. This issue affects Apache Traffic Server 5.0.0 to 9.1.0.
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
Apache Traffic Server 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Traffic Server（ATS）是美国阿帕奇（Apache）基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic 5.0.0至9.1.0版本存在安全漏洞，该漏洞源于程序没有对套接字连接进行正确解析。以下产品及版本受到影响：Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0。
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 |
|---|---|---|---|---|
| Apache Software Foundation | Apache Traffic Server | 7.0.0 to 9.1.0 | - |
|
II. Public POCs for CVE-2021-41585
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2021-41585 (1)
-
https://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164 x_refsource_MISC
Same Patch Batch · Apache Software Foundation · 2021-11-03 · 6 CVEs total
| CVE-2021-37147 | Request Smuggling - LF line ending | |
| CVE-2021-37148 | Request Smuggling - transfer encoding validation | |
| CVE-2021-37149 | Request Smuggling - multiple attacks | |
| CVE-2021-38161 | Not validating origin TLS certificate | |
| CVE-2021-43082 | heap-buffer-overflow with stats-over-http plugin |
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V. Comments for CVE-2021-41585
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