Cisco Unified Communications Manager TLS Certificate SAN cryptographic issues

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability was found in Cisco Unified Communications Manager (Unified Communication Software) (the affected version is unknown). It has been rated as critical. Affected by this issue is an unknown code of the component TLS Certificate Handler. The manipulation of the argument SAN with an unknown input leads to a cryptographic issues vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is integrity.

The weakness was released 11/10/2014 with Cisco as CSCuq86376 as confirmed security notice (Website). The advisory is shared for download at This vulnerability is handled as CVE-2014-7991 since 10/08/2014. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1600.

The vulnerability scanner Nessus provides a plugin with the ID 80283 (Cisco Unified Communications Manager TLS SAN Field MitM (CSCuq86376)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at X-Force (98574) and Tenable (80283). Entries connected to this vulnerability are available at VDB-173327, VDB-194937, VDB-209085 and VDB-210755.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Cryptographic issues
CWE: CWE-310

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 80283
Nessus Name: Cisco Unified Communications Manager TLS SAN Field MitM (CSCuq86376)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

0-Day Time: 🔍


10/08/2014 🔍
11/10/2014 +33 days 🔍
11/10/2014 +0 days 🔍
11/10/2014 +0 days 🔍
11/12/2014 +2 days 🔍
11/13/2014 +1 days 🔍
11/21/2014 +8 days 🔍
12/29/2014 +38 days 🔍
01/05/2015 +7 days 🔍
02/24/2022 +2607 days 🔍



Advisory: CSCuq86376
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-7991 (🔍)
X-Force: 98574 - Cisco Unified Communications Manager spoofing, Medium Risk
SecurityTracker: 1031181
Vulnerability Center: 47928 - Cisco Unified Communications Manager <=10.0(1) Remote Spoofing Vulnerability via a Crafted Certificate, Medium
SecurityFocus: 71013 - Cisco Unified Communications Manager TLS Certificate Validation Security Bypass Vulnerability
Secunia: 62267 - Cisco Unified Communications Manager Remote Mobile Access Subsystem Certificate Spoofing V, Less Critical

See also: 🔍


Created: 11/12/2014 04:33 PM
Updated: 02/24/2022 01:22 PM
Changes: 11/12/2014 04:33 PM (65), 06/17/2017 07:34 AM (9), 02/24/2022 01:17 PM (4), 02/24/2022 01:22 PM (1)
Complete: 🔍
Cache ID: 34:520:40


No comments yet. Languages: en.

Please log in to comment.

Interested in the pricing of exploits?

See the underground prices here!