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Rewterz Threat Advisory – Multiple Cisco Small Business Series Switches Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2023-20189 CVSS:9.8

Cisco Small Business Series Switches are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. By sending a specially crafted request, a remote attacker could overflow a buffer and execute arbitrary code with root privileges on the system.

CVE-2023-20162 CVSS:7.5

Cisco Small Business Series Switches could allow a remote attacker to obtain sensitive information, caused by improper validation of requests by the web interface. By sending a specially crafted request, an attacker could exploit this vulnerability to read unauthorized information, and use this information to launch further attacks against the affected system.

CVE-2023-20161 CVSS:9.8

Cisco Small Business Series Switches are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. By sending a specially crafted request, a remote attacker could overflow a buffer and execute arbitrary code on the system.

CVE-2023-20160 CVSS:9.8

Cisco Small Business Series Switches are vulnerable to a BSS buffer overflow, caused by improper bounds checking. By sending a specially crafted request, a remote attacker could overflow a buffer and execute arbitrary code with root privileges on the system.

CVE-2023-20159 CVSS:9.8

Cisco Small Business Series Switches are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. By sending a specially crafted request, a remote attacker could overflow a buffer and execute arbitrary code with root privileges on the system.

CVE-2023-20158 CVSS:8.6

Cisco Small Business Series Switches are vulnerable to a denial of service, caused by improper validation of requests by the web interface. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.

CVE-2023-20157 CVSS:8.6

Cisco Small Business Series Switches are vulnerable to a denial of service, caused by a heap-based buffer overflow in the web interface. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.

CVE-2023-20156 CVSS:8.6

Cisco Small Business Series Switches are vulnerable to a denial of service, caused by a heap-based buffer overflow in the web interface. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.

CVE-2023-20024 CVSS:8.6

Cisco Small Business Series Switches are vulnerable to a denial of service, caused by a heap-based buffer overflow in the web interface. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.

Impact

  • Denial of Service
  • Information Disclosure
  • Buffer Overflow

Indicators Of Compromise

CVE

  • CVE-2023-25927

Affected Vendors

Cisco

Affected Products

  • Cisco Small Business 300 Series Managed Switches
  • Cisco Small Business 500 Series Stackable Managed Switches
  • Cisco 350 Series Managed Switches
  • Cisco 350X Series Stackable Managed Switches
  • Cisco 550X Series Stackable Managed Switches
  • Cisco Small Business 200 Series Smart Switches
  • Cisco 250 Series Smart Switches
  • Cisco Business 250 Series Smart Switches
  • Cisco Business 350 Series Managed Switches

Remediation

Refer to IBM Security Bulletin for patch, upgrade or suggested workaround information.

IBM Security Bulletin