#VU8918 Information disclosure in Cisco Spark Hybrid Calendar Service - CVE-2017-12310
Published: October 24, 2017
Vulnerability identifier: #VU8918
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-12310
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco Spark Hybrid Calendar Service
Cisco Spark Hybrid Calendar Service
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The weakness exists in the auto discovery phase of Cisco Spark Hybrid Calendar Service because an unencrypted HTTP request is made due to requirements for implementing the Hybrid Calendar service. A remote attacker can view sensitive information in the unencrypted headers of an HTTP method request and access sensitive customer data belonging to Office365 users, such as email and calendar events.
The weakness exists in the auto discovery phase of Cisco Spark Hybrid Calendar Service because an unencrypted HTTP request is made due to requirements for implementing the Hybrid Calendar service. A remote attacker can view sensitive information in the unencrypted headers of an HTTP method request and access sensitive customer data belonging to Office365 users, such as email and calendar events.
Remediation
Update to version 1.0.4486.