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CVE-2020-8517

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 4.1.0之前版本中的ext_lm_group_acl二进制文件的NTLM身份验证凭据解析器存在输入验证错误漏洞。远程攻击者可借助特制请求利用该漏洞导致程序进程意外终止（拒绝服务）。

AI Predicted 5.3 Difficulty: Easy EPSS 6.85% · P94

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-8517

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 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.
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 4.1.0之前版本中的ext_lm_group_acl二进制文件的NTLM身份验证凭据解析器存在输入验证错误漏洞。远程攻击者可借助特制请求利用该漏洞导致程序进程意外终止（拒绝服务）。
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-2020-8517

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III. Intelligence Information for CVE-2020-8517

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Vendor Advisories for CVE-2020-8517 (2)

Mailing List Discussions for CVE-2020-8517 (3)

Other References for CVE-2020-8517 (2)

Same Patch Batch · n/a · 2020-02-04 · 55 CVEs total

CVE-2020-8124 Url-Parse 输入验证错误漏洞
CVE-2013-1422 webcalendar 安全漏洞
CVE-2013-7055 D-Link DIR-100 安全漏洞
CVE-2013-7052 D-Link DIR-100 安全漏洞
CVE-2013-7053 D-Link DIR-100 跨站请求伪造漏洞
CVE-2013-7054 D-Link DIR-100 跨站脚本漏洞
CVE-2013-7051 D-Link DIR-100 授权问题漏洞
CVE-2019-10784 phpPgAdmin 跨站请求伪造漏洞
CVE-2020-8615 WordPress Tutor LMS插件跨站请求伪造漏洞
CVE-2020-8125 npm klona 输入验证错误漏洞
CVE-2020-7221 MariaDB 安全漏洞
CVE-2020-8123 strapi 资源管理错误漏洞
CVE-2020-8122 Nextcloud Server 输入验证错误漏洞
CVE-2020-8121 Nextcloud Server 访问控制错误漏洞
CVE-2020-8120 Nextcloud Server 跨站脚本漏洞
CVE-2020-8119 Nextcloud 授权问题漏洞
CVE-2020-8118 Nextcloud 代码问题漏洞
CVE-2020-8117 Nextcloud Server 安全漏洞
CVE-2020-8116 dot-prop 安全漏洞
CVE-2020-8115 Revive Adserver 跨站脚本漏洞

Showing top 20 of 55 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2020-8517

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