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ID

VDE-2021-003

Published

2022-09-07 12:46 (CEST)

Last update

2022-09-07 12:46 (CEST)

Vendor(s)

MB connect line GmbH

Product(s)

Article No┬░ Product Name Affected Version(s)
mbCONNECT24 <= 2.11.2
mymbCONNECT24 <= 2.11.2

Summary

Multiple vulnerabilities have been found in mymbCONNECT24 and mbCONNECT24.

Update A, 2022-09-07:

  • Affected Products: updated affected versions due to incomplete fixes of some CVEs. See Solution for details.
  • Solution: updated version information.
  • Solution: Added Fix for CVE-2020-35561.
  • Solution: Added MFA remark for CVE-2020-35565.

Vulnerabilities



Weakness
Improper Restriction of Excessive Authentication Attempts (CWE-307)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. The login pages bruteforce detection is disabled by default.

Weakness
Improper Privilege Management (CWE-269)
Summary

An issue was discovered in the MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 software in all versions through 2.6.1. There is a local privilege escalation from the www-data account to the ...

Weakness
Use of Hard-coded Credentials (CWE-798)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. The software uses a secure password for database access, but this password is shared across instances.

Weakness
Server-Side Request Forgery (SSRF) (CWE-918)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. There is an SSRF in thein the MySQL access check, allowing an attacker to scan for open ...

Weakness
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. There is an outdated and unused component allowing for malicious user input of active code.

Weakness
Improper Privilege Management (CWE-269)
Summary

An issue was discovered in MB connect line mymbCONNECT24 and mbCONNECT24 software in all versions through V2.6.2.

Weakness
Exposure of Sensitive Information to an Unauthorized Actor (CWE-200)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 software in all versions through 2.6.2. Inproper use of access validation allows a logged in user to see devices ...

Weakness
Improper Privilege Management (CWE-269)
Summary

An issue was discovered in MB connect line mymbCONNECT24 and mbCONNECT24 software in all versions through V2.6.2.

Weakness
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (CWE-79)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. There is a self XSS issue with a crafted cookie in the login page.

Weakness
URL Redirection to Untrusted Site ('Open Redirect') (CWE-601)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. There is an unauthenticated open redirect in the redirect.php.

Weakness
Server-Side Request Forgery (SSRF) (CWE-918)
Summary

An issue was discovered in MB connect line mymbCONNECT24 and mbCONNECT24 software in all versions through V2.6.2 

Weakness
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (CWE-79)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. There is an incomplete XSS filter allowing an attacker to inject crafted malicious code into the page.

Weakness
Direct Request ('Forced Browsing') (CWE-425)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. An unauthenticated attacker is able to access files (that should have been restricted) via forceful browsing.

Weakness
Server-Side Request Forgery (SSRF) (CWE-918)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. There is an SSRF in the HA module allowing an unauthenticated attacker to scan for open ports.

Weakness
Use of Incorrectly-Resolved Name or Reference (CWE-706)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. An attacker can read arbitrary JSON files via Local File Inclusion.

Weakness
Cross-site Scripting (XSS) (CWE-79)
Summary

An issue was discovered in MB connect line mymbCONNECT24 and mbCONNECT24 software in all versions through V2.6.2.

Weakness
Uncontrolled Resource Consumption (CWE-400)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. There is an unused function that allows an authenticated attacker to use up all available IPs of ...

Weakness
Exposure of Sensitive Information to an Unauthorized Actor (CWE-200)
Summary

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. An incomplete filter applied to a database response allows an authenticated attacker to gain non-public information about ...

Impact

please see cve id entries

Solution

CVE-2020-12528, CVE-2020-12529, CVE-2020-35560,
CVE-2020-12530, CVE-2020-35563, 
CVE-2020-35564,
CVE-2020-35569, 
CVE-2020-35559,  Update to version >= 2.7.1

CVE-2020-10384: Update to version 2.6.2 to close any known way to get to www-data.
Note: This issue only exists up until version 2.6.1 and has already been addressed in >= 2.6.2

CVE-2020-35567: None
Note: A proper fix for the underlying issue will come with a future architectural core-system-update.

CVE-2020-35565: None
Mitigation: Activate bruteforce detection via Security → Fail2Ban → WebLogin
Note: A proper fix for the underlying issue will come with a future architectural core-system-update. To further increase the security level of your account enable MFA.

CVE-2020-35561: Update to version 2.12.1

Update A, 2022-09-07:

CVE-2020-35557, CVE-2020-35570, CVE-2020-35558,
CVE-2020-35566, CVE-2020-12527, CVE-2020-35568
Update to version 2.12.1

Reported by

OTORIO reported the vulnerabilities to MB connect line.

CERT@VDE coordinated.