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CVE-2019-12523

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。URI processor是其中的一个URI（统一资源标识符）处理器。 Squid 4.9之前版本中的URI processor存在输入验证错误漏洞，该漏洞源于程序没有正确处理URN请求。攻击者可借助特制请求利用该漏洞访问受限制的HTTP服务器。

AI Predicted 8.6 Difficulty: Easy EPSS 4.30% · P91

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2019-12523

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 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.
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。URI processor是其中的一个URI（统一资源标识符）处理器。 Squid 4.9之前版本中的URI processor存在输入验证错误漏洞，该漏洞源于程序没有正确处理URN请求。攻击者可借助特制请求利用该漏洞访问受限制的HTTP服务器。
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-2019-12523

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III. Intelligence Information for CVE-2019-12523

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Vendor Advisories for CVE-2019-12523 (4)

Mailing List Discussions for CVE-2019-12523 (4)

Other References for CVE-2019-12523 (1)

Same Patch Batch · n/a · 2019-11-26 · 66 CVEs total

CVE-2019-18461 GitLab 信息泄露漏洞
CVE-2019-19272 ProFTPD 代码问题漏洞
CVE-2019-19271 ProFTPD 信任管理问题漏洞
CVE-2019-19270 ProFTPD 信任管理问题漏洞
CVE-2019-19274 typed_ast 缓冲区错误漏洞
CVE-2018-17860 Cloudera CDH 安全漏洞
CVE-2019-19206 Dolibarr ERP/CRM 跨站脚本漏洞
CVE-2019-18463 GitLab 安全漏洞
CVE-2019-12489 Fastweb Askey RTV1907VW 注入漏洞
CVE-2019-18462 GitLab 安全漏洞
CVE-2019-19275 typed_ast 缓冲区错误漏洞
CVE-2019-18460 GitLab 信息泄露漏洞
CVE-2019-6675 F5 BIG-IP 授权问题漏洞
CVE-2019-19306 WordPress Zoho CRM Lead Magnet 插件跨站脚本漏洞
CVE-2015-9539 WordPress Fast Secure Contact Form 插件跨站脚本漏洞
CVE-2015-9538 WordPress NextGEN Gallery 插件路径遍历漏洞
CVE-2015-9537 WordPress NextGEN Gallery 插件跨站脚本漏洞
CVE-2019-19307 Cesanta Mongoose 输入验证错误漏洞
CVE-2018-20090 Cloudera Data Science Workbench 安全漏洞
CVE-2019-7319 Cloudera Hue 授权问题漏洞

Showing top 20 of 66 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

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