CVE-2021-44040— HTTP request line fuzzing attacks
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 Server 8.0.0 到 8.1.3 版本 和 9.0.0 到 9.1.1版本存在安全漏洞，该漏洞源于请求解析中的不正确的输入验证。攻击者可以发送无效请求利用该漏洞。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-44040
Vulnerability Information
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Vulnerability Title
HTTP request line fuzzing attacks
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Input Validation vulnerability in request line parsing of Apache Traffic Server allows an attacker to send invalid requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.3 and 9.0.0 to 9.1.1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
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 Server 8.0.0 到 8.1.3 版本 和 9.0.0 到 9.1.1版本存在安全漏洞，该漏洞源于请求解析中的不正确的输入验证。攻击者可以发送无效请求利用该漏洞。
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 | 8.0.0 to 8.1.3 and 9.0.0 to 9.1.1 | - |
|
II. Public POCs for CVE-2021-44040
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-44040 (1)
Mailing List Discussions for CVE-2021-44040 (1)
-
https://lists.apache.org/thread/zblwzcfs9ryhwjr89wz4osw55pxm6dx6 x_refsource_MISC
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V. Comments for CVE-2021-44040
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