Rewterz Threat Advisory –Multiple Zyxel products Vulnerabilities

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Rewterz Threat Advisory –Multiple Zyxel products Vulnerabilities

Severity

High

Analysis Summary

CVE-2023-22916 CVSS:8.1

Multiple Zyxel products are vulnerable to a denial of service, caused by a flaw in configuration parser. By modifying device configuration data, a remote attacker could exploit this vulnerability to cause a denial of service.

CVE-2023-22915 CVSS:7.5

Multiple Zyxel products are vulnerable to a denial of service, caused by a buffer overflow vulnerability in the fbwifi_forward.cgi. By sending a crafted HTTP request, a remote attacker could exploit this vulnerability to cause a denial of service.

CVE-2023-22914 CVSS:7.2

Multiple Zyxel products could allow a remote authenticated attacker to traverse directories on the system. An attacker could upload a specially crafted file to the account_print.cgi to execute unauthorized OS commands.

CVE-2023-22913 CVSS:8.1

Multiple Zyxel products could allow a remote authenticated attacker to execute arbitrary commands on the system, caused by a flaw in account_operator.cgi’s CGI program. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary commands on the system.

CVE-2023-27991 CVSS:8.8

Multiple Zyxel products could allow a remote authenticated attacker to execute arbitrary commands on the system, caused by a post-authentication command injection vulnerability in the CLI command. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary commands on the system.

CVE-2023-22917 CVSS:7.5

Multiple Zyxel products is vulnerable to a denial of service, caused by a buffer overflow vulnerability in the sdwan_iface_ipc binary. By uploading a crafted configuration file, a remote attacker could exploit this vulnerability to cause a core dump with a request error message.

CVE-2023-28771 CVSS:9.8

Multiple Zyxel products could allow a remote attacker to execute arbitrary commands on the system, caused by improper error message handling. By sending crafted packets, an attacker could exploit this vulnerability to execute arbitrary commands on the system.

CVE-2023-27990 CVSS:3.5

Multiple Zyxel products are vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote authenticated attacker could exploit this vulnerability to inject malicious script into a Web page which would be executed in a victim’s Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.