SB2019092521 - Multiple vulnerabilities in Moxa MB3xxx Series Protocol Gateways

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Main Vulnerability Database SB2019092521

SB2019092521 - Multiple vulnerabilities in Moxa MB3xxx Series Protocol Gateways

Published: September 25, 2019 Updated: March 3, 2020

Security Bulletin ID SB2019092521
CSH Severity
High
Patch available
YES
Number of vulnerabilities 10
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 20% Medium 70% Low 10%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 10 vulnerabilities.


1) Stack-based buffer overflow (CVE-ID: CVE-2019-9099)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the built-in web server. A remote unauthenticated attacker can trigger stack-based buffer overflow, perform a denial of service (DoS) attack and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Integer overflow (CVE-ID: CVE-2019-9098)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a buffer overflow.

The vulnerability exists due to integer overflow. A remote attacker can trigger integer overflow that causes less memory to be allocated than expected, leading to a buffer overflow


3) Cross-site request forgery (CVE-ID: CVE-2019-9102)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in a predictable mechanism of generating tokens. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.


4) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2019-9095)

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the affected products use a weak cryptographic algorithm with predictable variables. A remote attacker can gain unauthorized access to sensitive information on the system.


5) Information disclosure (CVE-ID: CVE-2019-9103)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper access restrictions in the built-in web service. A remote attacker can gain unauthorized access to sensitive information and usernames on the system.


6) Cleartext transmission of sensitive information (CVE-ID: CVE-2019-9101)

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to software uses insecure communication channel to transmit sensitive information. A remote attacker with ability to intercept network traffic can gain access to sensitive data.


7) Weak password requirements (CVE-ID: CVE-2019-9096)

CWE-ID: CWE-521 - Weak Password Requirements

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows an attacker to perform brute-force attack and guess the password.

The vulnerability exists due to weak password requirements. An attacker can perform a brute-force attack and guess users' passwords.


8) Cleartext storage of sensitive information (CVE-ID: CVE-2019-9104)

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to access an administrative account.

The vulnerability exists due to sensitive information is stored in configuration files without encryption. A remote attacker can obtain credentials.

9) Incorrectly Specified Destination in a Communication Channel (CVE-ID: CVE-2019-9097)

CWE-ID: CWE-941 - Incorrectly Specified Destination in a Communication Channel

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the affected software creates a communication channel to initiate an outgoing request to an actor, but it does not correctly specify the intended destination for that actor. A remote attacker can overload the system to cause the service to crash, leading to the web service may become temporarily unavailable.



10) Improper Authentication (CVE-ID: N/A)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in authentication process. A remote attacker can bypass authentication by logging in with empty username/password and execute arbitrary actions with administrator privileges on an affected system.


Remediation

Install update from vendor's website.

References