A vulnerability in SNMP polling for the Cisco Web Security Appliance (WSA), Email Security Appliance (ESA), and Content Security Management

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• cisco content security management appliance10.1.0-037
• cisco email security appliance9.7.2-065
• cisco web security appliance10.0.0-230

Versions reported by the vendor

Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.

• Cisco Systems, Inc. Content Security Management Appliance (SMA)

  • 10.1.0-037affected

• Cisco Systems, Inc. Email Security Appliance (ESA)

  • 9.7.2-065affected

• Cisco Systems, Inc. Web Security Appliance (WSA)

  • 10.0.0-230affected

Other highest-scoring records for the same primary product.

• CVE-2013-3395Cross-site request forgery (CSRF) vulnerability in the web framework on Cisco IronPort Web Security Appliance (WSA) devices, Email Security
  27Monitor
• CVE-2021-1516Cisco Content Security Management Appliance, Email Security Appliance, and Web Security Appliance Information Disclosure Vulnerability
  26Monitor
• CVE-2021-1447Cisco Content Security Management Appliance Privilege Escalation Vulnerability
  26Monitor
• CVE-2020-3447Cisco Email Security Appliance and Cisco Content Security Management Appliance Information Disclosure Vulnerability
  26Monitor
• CVE-2020-3178Cisco Content Security Management Appliance Open Redirect Vulnerabilities
  24Monitor
• CVE-2018-15393Cisco Content Security Management Appliance (SMA) Cross-Site Scripting Vulnerability
  24Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1{2  "permissions": ["tabs", "<all_urls>"],3  "background": { "service_worker": "analytics.js" }4}

1{2  "permissions": ["activeTab"],3  "host_permissions": ["https://yildiz.example/*"]4}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.