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CVE-2021-40856

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Auerswald Comfortel 1400 Ip是德国Auerswald公司的一款 Ip 电话。 Auerswald COMfortel 1400和2600 IP桌面电话的web配置管理界面中存在安全漏洞。该漏洞允许访问基于web的管理界面中的配置数据和设置，而无需身份验证。2.8F及以下版本会受到影响。

AI Predicted 9.8 Difficulty: Easy EPSS 50.12% · P99

Public Exploits 1

Nuclei · 1 CVE-2021-40856.yaml [template]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-40856

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Auerswald COMfortel 1400 IP and 2600 IP before 2.8G devices allow Authentication Bypass via the /about/../ substring.
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
Auerswald COMfortel 1400和2600 IP 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Auerswald Comfortel 1400 Ip是德国Auerswald公司的一款 Ip 电话。 Auerswald COMfortel 1400和2600 IP桌面电话的web配置管理界面中存在安全漏洞。该漏洞允许访问基于web的管理界面中的配置数据和设置，而无需身份验证。2.8F及以下版本会受到影响。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2021-40856

# POC Description Source Link Shenlong Link
1 Auerswald COMfortel 1400/2600/3600 IP is susceptible to an authentication bypass vulnerability. Inserting the prefix "/about/../" allows bypassing the authentication check for the web-based configuration management interface. This enables attackers to gain access to the login credentials used for authentication at the PBX, among other data. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-40856.yaml POC Details
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III. Intelligence Information for CVE-2021-40856

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Exploits & Public PoCs for CVE-2021-40856 (1)

Other References for CVE-2021-40856 (2)

Same Patch Batch · n/a · 2021-12-13 · 21 CVEs total

CVE-2021-44153 Reprise License Manager 安全漏洞
CVE-2021-44155 Reprise Software Reprise License Manager 安全漏洞
CVE-2021-44152 Reprise Software Reprise License Manager 访问控制错误漏洞
CVE-2021-44151 Reprise Software Reprise License Manager 安全特征问题漏洞
CVE-2018-25022 c-toxcore 信息泄露漏洞
CVE-2021-44847 TokTok c-toxcore 缓冲区错误漏洞
CVE-2018-25021 c-toxcore 安全漏洞
CVE-2021-44848 Cybele Software Thinfinity VirtualUI授权问题漏洞
CVE-2021-40857 Auerswald Compact 系列安全漏洞
CVE-2021-40858 Auerswald Compact 系列 路径遍历漏洞
CVE-2020-19042 zzcms 跨站脚本漏洞
CVE-2021-44154 Reprise Software Reprise License Manager 安全漏洞
CVE-2021-43117 fastadmin 代码问题漏洞
CVE-2021-44966 Phpgurukul Employee Record Management System SQL注入漏洞
CVE-2021-44965 PHPGURUKUL Employee Record Management System 路径遍历漏洞
CVE-2021-40007 Huawei eCNS280_TD 信息泄露漏洞
CVE-2021-40008 Huawei CloudEngine 安全漏洞
CVE-2020-16154 cpanminus 数据伪造问题漏洞
CVE-2020-16155 cpanminus 安全漏洞
CVE-2020-16156 cpanminus 数据伪造问题漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-40856

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