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CVE-2021-36767

Quick assessment

Affected
n/a n/a
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.

Digi RealPort是一种专有的 Serial-over-LAN 封装协议。它通过将 ICS 协议数据封装在基于 TCP 的协议中，为网络上任何地方的串行设备提供虚拟连接。 Digi RealPort存在安全漏洞，攻击者可利用该漏洞向服务器发送未经身份验证的请求，服务器将用服务器访问密码的弱散列版本进行应答，攻击者可利用该漏洞可能会脱机破解进而成功登录到服务器。

AI Predicted 8.6 Difficulty: Easy EPSS 0.69% · P53
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I. Basic Information for CVE-2021-36767

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server's access password. The attacker may then crack this hash offline in order to successfully login to the server.
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
Digi RealPort 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Digi RealPort是一种专有的 Serial-over-LAN 封装协议。它通过将 ICS 协议数据封装在基于 TCP 的协议中，为网络上任何地方的串行设备提供虚拟连接。 Digi RealPort存在安全漏洞，攻击者可利用该漏洞向服务器发送未经身份验证的请求，服务器将用服务器访问密码的弱散列版本进行应答，攻击者可利用该漏洞可能会脱机破解进而成功登录到服务器。
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-2021-36767

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III. Intelligence Information for CVE-2021-36767

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Other References for CVE-2021-36767 (1)

Same Patch Batch · n/a · 2021-10-08 · 17 CVEs total

CVE-2021-41802 2.9 LOW Hashicorp HashiCorp Vault 安全漏洞
CVE-2021-42112 LimeSurvey 跨站脚本漏洞
CVE-2020-22617 Ardour 资源管理错误漏洞
CVE-2021-42109 VITEC Exterity IPTV 安全漏洞
CVE-2021-32029 PostgreSQL 缓冲区错误漏洞
CVE-2021-20600 Mitsubishi Electric MELSEC iQ-R series 资源管理错误漏洞
CVE-2021-41920 webTareas SQL注入漏洞
CVE-2021-41919 webTareas 代码问题漏洞
CVE-2021-41918 webTareas 跨站脚本漏洞
CVE-2021-41917 webTareas 跨站脚本漏洞
CVE-2021-41916 webTareas 跨站请求伪造漏洞
CVE-2021-41825 Verint Systems Verint Workforce Optimization 跨站脚本漏洞
CVE-2021-3312 Alkacon OpenCms 代码问题漏洞
CVE-2021-35979 Digi RealPort 访问控制错误漏洞
CVE-2021-35977 Digi RealPort 安全漏洞
CVE-2021-41947 Subrion CMS SQL注入漏洞

IV. Related Vulnerabilities

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