CVE-2017-6779

Multiple Cisco products are affected by a vulnerability in local file management for certain system log files of Cisco collaboration products that could allow an unauthenticated, remote attacker to cause high disk utilization, resulting in a denial of service (DoS) condition. The vulnerability occurs because a certain system log file does not have a maximum size restriction. Therefore, the file is allowed to consume the majority of available disk space on the appliance. An attacker could exploit this vulnerability by sending crafted remote connection requests to the appliance. Successful exploitation could allow the attacker to increase the size of a system log file so that it consumes most of the disk space. The lack of available disk space could lead to a DoS condition in which the application functions could operate abnormally, making the appliance unstable. This vulnerability affects the following Cisco Voice Operating System (VOS)-based products: Emergency Responder, Finesse, Hosted Collaboration Mediation Fulfillment, MediaSense, Prime License Manager, SocialMiner, Unified Communications Manager (UCM), Unified Communications Manager IM and Presence Service (IM&P - earlier releases were known as Cisco Unified Presence), Unified Communication Manager Session Management Edition (SME), Unified Contact Center Express (UCCx), Unified Intelligence Center (UIC), Unity Connection, Virtualized Voice Browser. This vulnerability also affects Prime Collaboration Assurance and Prime Collaboration Provisioning. Cisco Bug IDs: CSCvd10872, CSCvf64322, CSCvf64332, CSCvi29538, CSCvi29543, CSCvi29544, CSCvi29546, CSCvi29556, CSCvi29571, CSCvi31738, CSCvi31741, CSCvi31762, CSCvi31807, CSCvi31818, CSCvi31823.

• Cisco Emergency Responder

  APP
  Cisco
  11.0\(1.10000.10\)12.0 – 12.0su1 (bez)11.0 – 11.5\(4\) (bez)10.5 – 10.5\(1a\) (bez)

• Cisco Finesse

  APP
  Cisco
  9.5\(1\)11.5 – 11.5\(3\) (bez)

• Cisco Hosted Collaboration Mediation Fulfillment

  APP
  Cisco
  9.5\(1\)11.5 – 11.5\(3\) (bez)

• Cisco Mediasense

  APP
  Cisco
  9.5\(1\)11.5 – 11.5su2 (bez)

• Cisco Prime Collaboration Assurance

  APP
  Cisco
  11.6 – 11.6_es16 (bez)12.1 – 12.1_es2 (bez)

• Cisco Prime Collaboration Provisioning

  APP
  Cisco
  12.5

• Cisco Prime License Manager

  APP
  Cisco
  10.5 – 10.5.2 (bez)11.0 – 11.5\(1\)su5 (bez)

• Cisco Socialminer

  APP
  Cisco
  11.6 – 11.6.1 (bez)

• Cisco Unified Communications Manager

  APP
  Cisco
  10.5\(2.10000.5\)11.0\(1.10000.10\)11.5\(1.10000.6\)12.010.0 – 10.5\(2\)su5 (bez)11.0 – 11.0\(1a\)su4 (bez)11.5 – 11.5\(1\)su3 (bez)

• Cisco Unified Contact Center Express

  APP
  Cisco
  9.0\(2\)su1.311.6 – 11.6\(1\) (bez)

• Cisco Unified Intelligence Center

  APP
  Cisco
  9.5\(1\)11.6 – 11.6\(1\) (bez)

• Cisco Unity Connection

  APP
  Cisco
  12.09.5\(0.9\)tt010.5 – 10.5su5 (bez)11.0 – 11.5.1su3 (bez)

• Cisco Virtualized Voice Browser

  APP
  Cisco
  11.6 – 11.6\(1\) (bez)