Information disclosure in Cisco Spark Hybrid Calendar Service
CVE-2017-12310
A vulnerability in the auto discovery phase of Cisco Spark Hybrid Calendar Service could allow an unauthenticated, remote attacker to view sensitive information in the unencrypted headers of an HTTP method request. The attacker could use this information to conduct additional reconnaissance attacks leading to the disclosure of sensitive customer data. The vulnerability exists in the auto discovery phase because an unencrypted HTTP request is made due to requirements for implementing the Hybrid Calendar service. An attacker could exploit this vulnerability by monitoring the unencrypted traffic on the network. An exploit could allow the attacker to access sensitive customer data belonging to Office365 users, such as email and calendar events. Cisco Bug IDs: CSCvg35593.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (57.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: -0.000
Affected products
- Cisco Spark Hybrid Calendar Service
- Cisco Spark Hybrid Calendar Service — versions Cisco Spark Hybrid Calendar Service
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2017-12310?
- CVE-2017-12310 is a high-severity vulnerability in Cisco Spark Hybrid Calendar Service, classified under Information Disclosure. CVSS score: 7.5/10. Published 2018-03-27.
- How severe is CVE-2017-12310?
- High severity. CVSS v3 base score is 7.5 out of 10.