Executive Summary

Informations
Name CVE-2017-3790 First vendor Publication 2017-02-01
Vendor Cve Last vendor Modification 2019-10-03

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Overall CVSS Score 8.6
Base Score 8.6 Environmental Score 8.6
impact SubScore 4 Temporal Score 8.6
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the received packet parser of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) software could allow an unauthenticated, remote attacker to cause a reload of the affected system, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient size validation of user-supplied data. An attacker could exploit this vulnerability by sending crafted H.224 data in Real-Time Transport Protocol (RTP) packets in an H.323 call. An exploit could allow the attacker to overflow a buffer in a cache that belongs to the received packet parser, which will result in a crash of the application, resulting in a DoS condition. All versions of Cisco Expressway Series Software and Cisco TelePresence VCS Software prior to version X8.8.2 are vulnerable. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Cisco Bug IDs: CSCus99263.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3790

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer
50 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 21
Application 11

Snort® IPS/IDS

Date Description
2017-01-26 Cisco Expressway and TelePresence VCS denial of service attempt
RuleID : 41415 - Revision : 1 - Type : PROTOCOL-VOIP

Nessus® Vulnerability Scanner

Date Description
2017-02-22 Name : A video conferencing application running on the remote host is affected by a ...
File : cisco_telepresence_vcs_sa_20170125-expressway.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/95786
CONFIRM https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...
SECTRACK http://www.securitytracker.com/id/1037697

Alert History

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Date Informations
2021-05-04 13:01:32
  • Multiple Updates
2021-04-22 02:15:08
  • Multiple Updates
2020-05-23 01:00:30
  • Multiple Updates
2019-10-03 09:20:23
  • Multiple Updates
2017-07-26 09:23:12
  • Multiple Updates
2017-02-27 21:26:22
  • Multiple Updates
2017-02-23 13:25:30
  • Multiple Updates
2017-02-03 09:23:49
  • Multiple Updates
2017-02-02 00:23:44
  • First insertion