Citrix Netscaler up to 10.5 large_search.html searchQuery cross site scripting

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.
4.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Citrix Netscaler up to 10.5. This affects an unknown function of the file help/rt/large_search.html. Executing a manipulation of the argument searchQuery can lead to cross site scripting. This vulnerability is tracked as CVE-2015-2840. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Citrix Netscaler up to 10.5 (Network Management Software) and classified as problematic. This vulnerability affects an unknown code block of the file help/rt/large_search.html. The manipulation of the argument searchQuery with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

Cross-site scripting (XSS) vulnerability in help/rt/large_search.html in Citrix NetScaler before 10.5 build 52.3nc allows remote attackers to inject arbitrary web script or HTML via the searchQuery parameter.

The weakness was disclosed 04/03/2015 (Website). The advisory is shared for download at securify.nl. This vulnerability was named CVE-2015-2840 since 04/03/2015. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:help/rt/large_search.html it is possible to find vulnerable targets with Google Hacking. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11577 (Citrix NetScaler Nitro API Multiple Remote Vulnerabilities).

Upgrading to version 10.5 build 52.3nc eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 73342†) and Vulnerability Center (SBV-49487†). The entries VDB-74074, VDB-74077, VDB-74078 and VDB-74630 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

OpenVAS ID: 801854
OpenVAS Name: Citrix NetScaler VPX large_search.html Cross-Site Scripting Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Netscaler 10.5 build 52.3nc

Timelineinfo

03/19/2015 🔍
03/20/2015 +1 days 🔍
04/03/2015 +14 days 🔍
04/03/2015 +0 days 🔍
04/03/2015 +0 days 🔍
04/04/2015 +1 days 🔍
04/12/2015 +8 days 🔍
05/02/2022 +2577 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: 130936
Status: Not defined

CVE: CVE-2015-2840 (🔍)
GCVE (CVE): GCVE-0-2015-2840
GCVE (VulDB): GCVE-100-74632
SecurityFocus: 73342 - Citrix NetScaler VPX 'large_search.html' Cross-Site Scripting Vulnerability
Vulnerability Center: 49487 - Citrix NetScaler VPX <10.5 build 52.3nc Remote XSS Attack via searchQuery Parameter, Medium

See also: 🔍

Entryinfo

Created: 04/04/2015 09:56
Updated: 05/02/2022 16:14
Changes: 04/04/2015 09:56 (60), 06/25/2017 08:42 (7), 05/02/2022 16:14 (3)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you know our Splunk app?

Download it now for free!