SB2020022607 - Multiple vulnerabilities in Moxa PT-7528 and PT-7828 Series Ethernet Switches

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Main Vulnerability Database SB2020022607

SB2020022607 - Multiple vulnerabilities in Moxa PT-7528 and PT-7828 Series Ethernet Switches

Published: February 26, 2020 Updated: February 26, 2020

Security Bulletin ID SB2020022607
CSH Severity
High
Patch available
NO
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

High 33% Medium 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 vulnerabilities.


1) Stack-based buffer overflow (CVE-ID: CVE-2020-6989)

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 web server. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code or cause a denial of service (DoS) condition on the target system.

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


2) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2020-6987)

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:A/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. A remote attacker can gain unauthorized access to sensitive information on the system.


3) Use of Hard-coded Cryptographic Key (CVE-ID: CVE-2020-6983)

CWE-ID: CWE-321 - Use of Hard-coded Cryptographic Key

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 disclose sensitive information on the target system.

The vulnerability exists due to the affected products use a hard-coded cryptographic key. A remote attacker can obtain the key and recover the confidential data.

4) Use of hard-coded credentials (CVE-ID: CVE-2020-6985)

CWE-ID: CWE-798 - Use of Hard-coded Credentials

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 gain full access to vulnerable system.

The vulnerability exists due to presence of hard-coded credentials in application code. A remote unauthenticated attacker can access the affected system using the hard-coded credentials for access to the console.

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


5) Weak password requirements (CVE-ID: CVE-2020-6995)

CWE-ID: CWE-521 - Weak Password Requirements

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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.


6) Information disclosure (CVE-ID: CVE-2020-6993)

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 web service. A remote attacker can gain unauthorized access to sensitive information on the system.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References