SB2017102404 - Information disclosure in Cisco Spark Hybrid Calendar Service
Published: October 24, 2017
Security Bulletin ID
SB2017102404
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2017-12310)
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.
Remediation
Install update from vendor's website.