VDB-92505 · CVE-2016-6273 · BID 93450

Citrix License Server/License Server VPX up to 11.14.0.0 denial of service

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.
6.3	$0-$5k	0.00

A vulnerability, which was classified as problematic, was found in Citrix License Server and License Server VPX up to 11.14.0.0 (Connectivity Software). This affects an unknown function. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The program does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Citrix License Server for Windows before 11.14.0.1 and License Server VPX before 11.14.0.1 allow remote attackers to cause a denial of service (server crash) via unspecified vectors.

The weakness was published 10/07/2016 as confirmed advisory (Website). The advisory is shared at support.citrix.com. This vulnerability is uniquely identified as CVE-2016-6273 since 07/22/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 11.14.0.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityTracker (ID 1037008).

Productinfo

Type

Connectivity Software

Vendor

Citrix

Name

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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🔍	🔍	🔍	🔍	🔍	🔍
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: License Server/License Server VPX 11.14.0.1

Timelineinfo

07/22/2016 🔍
10/07/2016 +77 days 🔍
10/07/2016 +0 days 🔍
10/08/2016 +1 days 🔍
10/13/2016 +5 days 🔍
09/22/2022 +2170 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: support.citrix.com
Status: Confirmed

CVE: CVE-2016-6273 (🔍)
SecurityTracker: 1037008 - Citrix License Server Unspecified Bug Lets Remote Users Cause the Target System to Crash
SecurityFocus: 93450

Entryinfo

Created: 10/08/2016 07:00 PM
Updated: 09/22/2022 04:39 PM
Changes: (13) vulnerability_cvss2_nvd_basescore vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss3_nvd_basescore vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a exploit_price_0day
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