Cisco TelePresence Video Communication Server up to X8.7.1 Mobile/Remote Access Certificate input validation

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Cisco TelePresence Video Communication Server up to X8.7.1 (Unified Communication Software). It has been declared as critical. Affected by this vulnerability is an unknown part of the component Mobile/Remote Access. The manipulation as part of a Certificate leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Mobile and Remote Access (MRA) component in Cisco TelePresence Video Communication Server (VCS) X8.1 through X8.7 and Expressway X8.1 through X8.6 mishandles certificates, which allows remote attackers to bypass authentication via an arbitrary trusted certificate, aka Bug ID CSCuz64601.

The weakness was shared 07/07/2016 as CSCuz64601 as not defined advisory (Website). It is possible to read the advisory at This vulnerability is known as CVE-2016-1444 since 01/04/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 92045 (Cisco TelePresence VCS / Expressway 8.x < 8.8 Multiple Vulnerabilities (Bar Mitzvah)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context r.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (92045) and SecurityFocus (BID 91669†). The entry VDB-79763 is related to this item.








  • end of life (old version)

CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
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NVD Base Score: 6.5
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Class: Input validation

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 92045
Nessus Name: Cisco TelePresence VCS / Expressway 8.x < 8.8 Multiple Vulnerabilities (Bar Mitzvah)
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OpenVAS ID: 860731
OpenVAS Name: Cisco TelePresence Video Communication Server (VCS) Authentication Bypass Vulnerability
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Threat Intelligenceinfo

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Recommended: Upgrade
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01/04/2016 🔍
07/06/2016 +184 days 🔍
07/06/2016 +0 days 🔍
07/07/2016 +1 days 🔍
07/07/2016 +0 days 🔍
07/08/2016 +1 days 🔍
07/14/2016 +6 days 🔍
09/01/2022 +2240 days 🔍



Advisory: CSCuz64601
Status: Not defined

CVE: CVE-2016-1444 (🔍)
SecurityTracker: 1036237
SecurityFocus: 91669 - Cisco Video Communication Server and Expressway CVE-2016-1444 Authentication Bypass Vulnerability

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Created: 07/08/2016 09:50 AM
Updated: 09/01/2022 08:00 AM
Changes: 07/08/2016 09:50 AM (65), 02/18/2019 02:09 PM (13), 09/01/2022 08:00 AM (4)
Complete: 🔍
Cache ID: 44:B2F:40


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