思科 Finesse OpenSocial Gadget 编辑器未授权访问漏洞

Successful exploitation of CVE-2021-1246 allows an attacker to directly access the OpenSocial Gadget Editor within the affected Cisco products. This could enable unauthorized modification of gadget configurations, potentially leading to the injection of malicious code or the alteration of system behavior. While the immediate impact might be limited to the gadget editor itself, a compromised editor could be leveraged for further attacks, such as phishing campaigns targeting users of the system or gaining a foothold for broader network reconnaissance. The lack of authentication makes this vulnerability particularly concerning, as it requires no prior user credentials to exploit.

Organizations heavily reliant on Cisco Finesse for contact center operations are particularly at risk. Environments with legacy configurations or those that have not implemented robust access controls are also more vulnerable. Shared hosting environments where multiple tenants share the same infrastructure could also be affected if one tenant compromises the Finesse instance.

• cisco / server:

# Check for vulnerable versions in Cisco Finesse configuration
# (Requires access to Finesse admin interface or configuration files)
# Example: grep 'version' /opt/cisco/finnesse/version.txt

• generic web:

# Check for exposure of the OpenSocial Gadget Editor endpoint
curl -I https://<finnesse_ip>/gadgeteditor
# Look for a 200 OK response without authentication challenges

• generic web:

# Review access logs for requests to the gadget editor endpoint
# from unexpected IP addresses or user agents
grep '/gadgeteditor' /var/log/apache2/access.log

1. 2021-01-13Disclosure

   disclosure

1. 已保留2020-11-13
2. 发布日期2021-01-13
3. 修改日期2024-09-17
4. EPSS 更新日期2026-04-02

The primary mitigation for CVE-2021-1246 is to upgrade to a fixed version of Cisco Finesse, Virtualized Voice Browser, or Unified CVP as provided by Cisco. Until an upgrade is possible, implement a Web Application Firewall (WAF) or proxy to filter requests to the vulnerable OpenSocial Gadget Editor endpoint. Specifically, block access to the affected URL path. Monitor access logs for suspicious activity, particularly requests originating from unknown or untrusted sources. Consider implementing stricter access controls and authentication mechanisms for the web management interface, even if they don't directly address this specific vulnerability, to reduce the overall attack surface. After upgrade, confirm by verifying that the OpenSocial Gadget Editor requires authentication.