SB2024100414 - Multiple vulnerabilities in Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices

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Main Vulnerability Database SB2024100414

SB2024100414 - Multiple vulnerabilities in Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices

Published: October 4, 2024

Security Bulletin ID SB2024100414
CSH Severity
High
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 vulnerabilities.


1) Double free (CVE-ID: CVE-2024-20498)

CWE-ID: CWE-415 - Double Free

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:Amber


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

The vulnerability exists due to insufficient validation of client-supplied parameters while establishing an SSL VPN session. A remote attacker can pass specially crafted data to the application, trigger double free error and cause a denial of service condition on the target system.


2) Double free (CVE-ID: CVE-2024-20499)

CWE-ID: CWE-415 - Double Free

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:Amber


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

The vulnerability exists due to insufficient validation of client-supplied parameters while establishing an SSL VPN session. A remote attacker can pass specially crafted data to the application, trigger double free error and cause a denial of service condition on the target system.


3) Resource exhaustion (CVE-ID: CVE-2024-20500)

CWE-ID: CWE-400 - Resource exhaustion

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 insufficient resource management when establishing TLS/SSL sessions in the Cisco AnyConnect VPN server. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


4) Double free (CVE-ID: CVE-2024-20501)

CWE-ID: CWE-415 - Double Free

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:Amber


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

The vulnerability exists due to insufficient validation of client-supplied parameters while establishing an SSL VPN session. A remote attacker can pass specially crafted data to the application, trigger double free error and cause a denial of service condition on the target system.


5) Resource exhaustion (CVE-ID: CVE-2024-20502)

CWE-ID: CWE-400 - Resource exhaustion

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 insufficient resource management while establishing SSL VPN sessions in the Cisco AnyConnect VPN server. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


6) Authorization bypass through user-controlled key (CVE-ID: CVE-2024-20513)

CWE-ID: CWE-639 - Authorization Bypass Through User-Controlled Key

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 insufficient entropy for handlers that are used during SSL VPN session establishment in the Cisco AnyConnect VPN server. A remote attacker can send a specially crafted HTTPS request using the brute-forced or predicted session handler and cause a denial of service condition on the target system.


Remediation

Install update from vendor's website.

References