CVE intelligence and bounded remediation

CVE-2017-6790 — Cisco Telepresence Video Communication Server security vulnerability

High CVSS 7.1

A vulnerability in the Session Initiation Protocol (SIP) on the Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the targeted appliance. The vulnerability is due to excessive SIP traffic sent to the device. An attacker could exploit this vulnerability by transmitting large volumes of SIP traffic to the VCS. An exploit could allow the attacker to cause a complete DoS condition on the targeted system. Cisco Bug IDs: CSCve32897.

Severity
High
CVSS
7.1 (2.0)
Published
2017-08-17
CISA KEV
Not currently listed
Ecosystem
software/application

Affected products

  • cisco / telepresence_video_communication_server / x8.7
  • cisco / telepresence_video_communication_server / x8.7.1
  • cisco / telepresence_video_communication_server / x8.7.2
  • cisco / telepresence_video_communication_server / x8.7.3
  • cisco / telepresence_video_communication_server / x8.8
  • cisco / telepresence_video_communication_server / x8.9

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

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