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CVE-2021-27561

Quick assessment

Affected
n/a n/a
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Yealink Device Management（Yealink Dm）是中国亿联（Yealink）公司的一种适用于 Microsoft 认证的 Yealink Skype For Business Ip 电话。 Yealink Device Management 3.6.0.20及其之前版本存在操作系统命令注入漏洞，该漏洞源于软件允许攻击者通过 /sm/api/v1/firewall/zone/services 的URI 以root身份注入命令，无需认证。

AI Predicted 9.8 Difficulty: Trivial KEV EPSS 82.86% · P100

Public Exploits 1

Nuclei · 1 CVE-2021-27561.yaml [template]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-27561

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Yealink Device Management (DM) 3.6.0.20 allows command injection as root via the /sm/api/v1/firewall/zone/services URI, without authentication.
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
Yealink Device Management 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yealink Device Management（Yealink Dm）是中国亿联（Yealink）公司的一种适用于 Microsoft 认证的 Yealink Skype For Business Ip 电话。 Yealink Device Management 3.6.0.20及其之前版本存在操作系统命令注入漏洞，该漏洞源于软件允许攻击者通过 /sm/api/v1/firewall/zone/services 的URI 以root身份注入命令，无需认证。
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-2021-27561

# POC Description Source Link Shenlong Link
1 Yealink Device Management (DM) 3.6.0.20 allows command injection as root via the /sm/api/v1/firewall/zone/services URI, without authentication. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-27561.yaml POC Details
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III. Intelligence Information for CVE-2021-27561

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Other References for CVE-2021-27561 (1)

Same Patch Batch · n/a · 2021-10-15 · 23 CVEs total

CVE-2021-41320 5.5 MEDIUM ION Wallstreet Suite TRM 信任管理问题漏洞
CVE-2021-40988 Aruba ClearPass Policy Manager 路径遍历漏洞
CVE-2021-28021 stb 缓冲区错误漏洞
CVE-2021-40999 Aruba ClearPass Policy Manager 命令注入漏洞
CVE-2021-37737 Aruba ClearPass Policy Manager SQL注入漏洞
CVE-2021-37736 Aruba ClearPass Policy Manager 授权问题漏洞
CVE-2021-37738 Aruba ClearPass Policy Manager 安全漏洞
CVE-2021-40987 Aruba ClearPass Policy Manager 命令注入漏洞
CVE-2021-37739 Aruba ClearPass Policy Manager 命令注入漏洞
CVE-2021-40986 Aruba ClearPass Policy Manager 命令注入漏洞
CVE-2021-40992 Aruba ClearPass Policy Manager SQL注入漏洞
CVE-2021-40989 Aruba ClearPass Policy Manager 安全漏洞
CVE-2018-16061 Mitsubishi Electric smartRTU 跨站脚本漏洞
CVE-2021-40990 Aruba ClearPass Policy Manager 信息泄露漏洞
CVE-2021-40996 Aruba ClearPass Policy Manager 授权问题漏洞
CVE-2021-40993 Aruba ClearPass Policy Manager SQL注入漏洞
CVE-2021-40994 Aruba ClearPass Policy Manager 命令注入漏洞
CVE-2021-40991 Aruba ClearPass Policy Manager 信息泄露漏洞
CVE-2021-40995 Aruba ClearPass Policy Manager 命令注入漏洞
CVE-2021-40997 Aruba ClearPass Policy Manager 授权问题漏洞

Showing top 20 of 23 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

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