Improper input validation in Cisco Telepresence Video Communication Server (Vcs)
CVE-2019-1845
A vulnerability in the authentication service of the Cisco Unified Communications Manager IM and Presence (Unified CM IM&P) Service, Cisco TelePresence Video Communication Server (VCS), and Cisco Expressway Series could allow an unauthenticated, remote attacker to cause a service outage for users attempting to authenticate, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient controls for specific memory operations. An attacker could exploit this vulnerability by sending a malformed Extensible Messaging and Presence Protocol (XMPP) authentication request to an affected system. A successful exploit could allow the attacker to cause an unexpected restart of the authentication service, preventing users from successfully authenticating. Exploitation of this vulnerability does not impact users who were authenticated prior to an attack.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.046 (91.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.046 · newest: 0.046 · change: 0.000
Affected products
- Cisco Telepresence Video Communication Server (Vcs) — versions unspecified
- Cisco Telepresence Video Communication Server
- Cisco Unified Communications Manager Im And Presence Service — versions 11.5\(1\), 11.5(1)
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605… (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/108615 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-1845?
- CVE-2019-1845 is a high-severity vulnerability in Cisco Telepresence Video Communication Server (Vcs), classified under Improper Input Validation. CVSS score: 8.6/10. Published 2019-06-05.
- How severe is CVE-2019-1845?
- High severity. CVSS v3 base score is 8.6 out of 10.