VDB-117968 · CVE-2018-7218 · Qualys 370957

Citrix Netscaler Application Delivery Controller AppFirewall privileges management

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.
8.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Citrix Netscaler Application Delivery Controller and Netscaler Gateway and classified as critical. This issue affects some unknown processing of the component AppFirewall. Such manipulation leads to privileges management. This vulnerability is listed as CVE-2018-7218. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Citrix Netscaler Application Delivery Controller and Netscaler Gateway (Network Management Software) (the affected version is unknown) and classified as critical. Affected by this issue is an unknown code of the component AppFirewall. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The AppFirewall functionality in Citrix NetScaler Application Delivery Controller and NetScaler Gateway 10.5 before Build 68.7, 11.0 before Build 71.24, 11.1 before Build 58.13, and 12.0 before Build 57.24 allows remote attackers to execute arbitrary code via unspecified vectors.

The bug was discovered 05/14/2018. The weakness was presented 05/17/2018 (Website). The advisory is shared for download at securitytracker.com. This vulnerability is handled as CVE-2018-7218 since 02/18/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370957 (Citrix NetScaler Gateway Remote Code Execution Vulnerability).

Upgrading eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Network Management Software

Vendor

Citrix

Name

License

commercial

Website

Vendor: https://www.citrix.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / 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-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/18/2018 🔍
05/14/2018 +85 days 🔍
05/17/2018 +2 days 🔍
05/17/2018 +0 days 🔍
05/18/2018 +1 days 🔍
03/14/2023 +1761 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: securitytracker.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-7218 (🔍)
GCVE (CVE): GCVE-0-2018-7218
GCVE (VulDB): GCVE-100-117968
SecurityTracker: 1040921

Entryinfo

Created: 05/18/2018 08:50
Updated: 03/14/2023 09:41
Changes: 05/18/2018 08:50 (60), 02/07/2020 10:21 (1), 03/14/2023 09:41 (4)
Complete: 🔍
Cache ID: 216::103