VDB-79235 · CVE-2015-7996 · BID 77565

Citrix Netscaler Application Delivery Controller/Gateway up to 10.1/10.5/10.5.e Nitro API information disclosure

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.
5.1$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Citrix Netscaler Application Delivery Controller and Gateway up to 10.1/10.5/10.5.e. This affects an unknown part of the component Nitro API. The manipulation leads to information disclosure. This vulnerability is referenced as CVE-2015-7996. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Citrix Netscaler Application Delivery Controller and Gateway up to 10.1/10.5/10.5.e (Network Management Software). It has been rated as problematic. This issue affects some unknown functionality of the component Nitro API. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

The Nitro API in Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway before 10.1 Build 133.9, 10.5 before Build 58.11, and 10.5.e before Build 56.1505.e on NetScaler Service Delivery Appliance Service VM (SVM) devices allow attackers to obtain credentials via the browser cache.

The weakness was published 11/17/2015 (Website). It is possible to read the advisory at support.citrix.com. The identification of this vulnerability is CVE-2015-7996 since 10/28/2015. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 10.1 Build 133.9, 10.5 Build 58.11 or 10.5.e Build 56.1505.e eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 77565†), SecurityTracker (ID 1034167†) and Vulnerability Center (SBV-54825†). Similar entries are available at VDB-79236 and VDB-79237. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

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

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

OpenVAS ID: 801854
OpenVAS Name: Citrix NetScaler Service Delivery Appliance Multiple Security Updates (CTX202482)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Netscaler Application Delivery Controller/Gateway 10.1 Build 133.9/10.5 Build 58.11/10.5.e Build 56.1505.e

Timelineinfo

10/28/2015 🔍
11/11/2015 +14 days 🔍
11/11/2015 +0 days 🔍
11/17/2015 +6 days 🔍
11/17/2015 +0 days 🔍
11/17/2015 +0 days 🔍
11/18/2015 +1 days 🔍
12/07/2015 +19 days 🔍
05/17/2018 +892 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: support.citrix.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7996 (🔍)
GCVE (CVE): GCVE-0-2015-7996
GCVE (VulDB): GCVE-100-79235
SecurityFocus: 77565 - Citrix NetScaler Service Delivery Appliance Multiple Local Information Disclosure Vulnerabilities
SecurityTracker: 1034167
Vulnerability Center: 54825 - Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway Local Information Disclosure Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 11/18/2015 10:15
Updated: 05/17/2018 23:25
Changes: 11/18/2015 10:15 (57), 05/17/2018 23:25 (13)
Complete: 🔍
Cache ID: 216:4E8:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!