CVE-2021-31807
Quick assessment
Affected
n/a n/a
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。 Squid 存在输入验证错误漏洞。该漏洞源于程序不正确的内存管理错误，攻击者可利用该漏洞造成拒绝服务。以下产品及版本存在该漏洞：Squid 4.14版本及之前、Squid 5.0.5版本及之前。
Public Exploits 1
Metasploit · 1
squid_range_dos.rb#CVE-2021-31807 [auxiliary]
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-31807
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent.
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
Squid 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。 Squid 存在输入验证错误漏洞。该漏洞源于程序不正确的内存管理错误，攻击者可利用该漏洞造成拒绝服务。以下产品及版本存在该漏洞：Squid 4.14版本及之前、Squid 5.0.5版本及之前。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2021-31807
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-31807 (2)
Mailing List Discussions for CVE-2021-31807 (5)
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http://seclists.org/fulldisclosure/2023/Oct/14 mailing-list
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[SECURITY] [DLA 2685-1] squid3 security update mailing-list
Other References for CVE-2021-31807 (1)
Same Patch Batch · n/a · 2021-06-08 · 30 CVEs total
| CVE-2021-26472 | 10.0 CRITICAL | Unauthenticated remote command execution with SYSTEM privileges in Vembu products |
| CVE-2021-26473 | 9.8 CRITICAL | Unauthenticated arbitrary file upload and command execution in Vembu products |
| CVE-2021-26471 | 9.8 CRITICAL | Unauthenticated remote command execution in Vembu products |
| CVE-2021-26474 | 8.6 HIGH | UNAUTHENTICATED SERVER SIDE REQUEST FORGERY IN VEMBU PRODUCTS |
| CVE-2021-23392 | 5.3 MEDIUM | Regular Expression Denial of Service (ReDoS) |
| CVE-2021-23215 | Industrial Light and Magic OpenEXR 资源管理错误漏洞 | |
| CVE-2021-32106 | ICEcoder 跨站脚本漏洞 | |
| CVE-2020-26516 | Intland codeBeamer ALM 跨站请求伪造漏洞 | |
| CVE-2021-3564 | Linux kernel 资源管理错误漏洞 | |
| CVE-2021-26945 | Industrial Light and Magic OpenEXR 输入验证错误漏洞 | |
| CVE-2021-22116 | RabbitMQ输入验证错误漏洞 | |
| CVE-2021-31738 | Adiscon LogAnalyzer 跨站脚本漏洞 | |
| CVE-2021-23169 | Industrial Light And Magic（lim） OpenEXR 缓冲区错误漏洞 | |
| CVE-2021-30357 | Arch Linux安全漏洞 | |
| CVE-2021-26260 | Industrial Light and Magic OpenEXR 资源管理错误漏洞 | |
| CVE-2021-33560 | Libgcrypt 安全漏洞 | |
| CVE-2021-33571 | Django 代码问题漏洞 | |
| CVE-2020-26517 | Intland Software codeBeamer ALM 跨站脚本漏洞 | |
| CVE-2020-26515 | Intland codeBeamer ALM 安全漏洞 | |
| CVE-2021-31342 | Solid Edge SE 缓冲区错误漏洞 |
Showing top 20 of 30 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-31807
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