CVE-2021-27392
Quick assessment
Affected
Siemens Siveillance Video Open Network Bridge
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.
Siemens Milestone Open Network Bridge是德国西门子（Siemens）公司的一个应用软件。提供一个支持onvif的接口。 Open Network Bridge存在安全漏洞，该漏洞源于Open Network Bridge ONVIF客户端和ONVIF服务器之间的身份验证存储用户凭据，使用硬编码的密钥，这可以允许经过身份验证的远程攻击者检索和解密存储在ONVIF服务器上的所有凭据。以下产品及版本受到影响： Open Network Bridge 22020 R3、 Ope
Possible ATT&CK Techniques 3 AI
T1005 · Data from Local System T1552 · Unsecured Credentials T1552.004 · Private Keys
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I. Basic Information for CVE-2021-27392
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in Siveillance Video Open Network Bridge (2020 R3), Siveillance Video Open Network Bridge (2020 R2), Siveillance Video Open Network Bridge (2020 R1), Siveillance Video Open Network Bridge (2019 R3), Siveillance Video Open Network Bridge (2019 R2), Siveillance Video Open Network Bridge (2019 R1), Siveillance Video Open Network Bridge (2018 R3), Siveillance Video Open Network Bridge (2018 R2). Affected Open Network Bridges store user credentials for the authentication between ONVIF clients and ONVIF server using a hard-coded key. The encrypted credentials can be retrieved via the MIP SDK. This could allow an authenticated remote attacker to retrieve and decrypt all credentials stored on the ONVIF server.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens Open Network Bridge 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens Milestone Open Network Bridge是德国西门子（Siemens）公司的一个应用软件。提供一个支持onvif的接口。 Open Network Bridge存在安全漏洞，该漏洞源于Open Network Bridge ONVIF客户端和ONVIF服务器之间的身份验证存储用户凭据，使用硬编码的密钥，这可以允许经过身份验证的远程攻击者检索和解密存储在ONVIF服务器上的所有凭据。以下产品及版本受到影响： Open Network Bridge 22020 R3、 Ope
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 |
|---|---|---|---|---|
| Siemens | Siveillance Video Open Network Bridge | 2020 R3 | - |
|
| Siemens | Siveillance Video Open Network Bridge | 2020 R2 | - |
|
| Siemens | Siveillance Video Open Network Bridge | 2020 R1 | - |
|
| Siemens | Siveillance Video Open Network Bridge | 2019 R3 | - |
|
| Siemens | Siveillance Video Open Network Bridge | 2019 R2 | - |
|
| Siemens | Siveillance Video Open Network Bridge | 2019 R1 | - |
|
| Siemens | Siveillance Video Open Network Bridge | 2018 R3 | - |
|
| Siemens | Siveillance Video Open Network Bridge | 2018 R2 | - |
|
II. Public POCs for CVE-2021-27392
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-27392 (1)
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https://cert-portal.siemens.com/productcert/pdf/ssa-853866.pdf x_refsource_MISC
Same Patch Batch · Siemens · 2021-04-22 · 19 CVEs total
| CVE-2020-25244 | 8.4 HIGH | Siemens LOGO! Soft Comfort 代码问题漏洞 |
| CVE-2020-27009 | 8.1 HIGH | 多款Siemens产品 缓冲区错误漏洞 |
| CVE-2020-15795 | 8.1 HIGH | 多款siemens产品 缓冲区错误漏洞 |
| CVE-2021-25663 | 7.5 HIGH | Siemens Nucleus 安全漏洞 |
| CVE-2021-25664 | 7.5 HIGH | Siemens Nucleus 安全漏洞 |
| CVE-2020-27737 | 6.5 MEDIUM | 多款siemens产品 缓冲区错误漏洞 |
| CVE-2020-27736 | 6.5 MEDIUM | 多款siemens产品 缓冲区错误漏洞 |
| CVE-2020-27738 | 6.5 MEDIUM | 多款siemens产品 缓冲区错误漏洞 |
| CVE-2021-25677 | 5.3 MEDIUM | 多款Siemens产品 安全特征问题漏洞 |
| CVE-2020-25243 | 5.1 MEDIUM | Siemens LOGO! Soft Comfort 路径遍历漏洞 |
| CVE-2021-25668 | Siemens Web Server缓冲区错误漏洞 | |
| CVE-2021-25669 | Siemens Web Server 缓冲区错误漏洞 | |
| CVE-2021-27393 | Nucleus ReadyStart安全特征问题漏洞 | |
| CVE-2021-27389 | Siemens Digital Industries Software Opcenter Quality 安全漏洞 | |
| CVE-2020-26997 | Siemens Solid Edge 安全漏洞 | |
| CVE-2021-27382 | Siemens Solid Edge 缓冲区错误漏洞 | |
| CVE-2021-25678 | Siemens Solid Edge 缓冲区错误漏洞 | |
| CVE-2021-25670 | siemens Tecnomatix RobotExpert 缓冲区错误漏洞 |
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V. Comments for CVE-2021-27392
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