Citrix Netscaler up to 10.5 Nitro API params/xen_hotfix/0 cross-site request forgery
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.9 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, has been found in Citrix Netscaler up to 10.5 (Network Management Software). Affected by this issue is an unknown part of the file params/xen_hotfix/0 of the component Nitro API. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity. CVE summarizes:
Cross-site request forgery (CSRF) vulnerability in Nitro API in Citrix NetScaler before 10.5 build 52.3nc allows remote attackers to hijack the authentication of administrators for requests that execute arbitrary commands as nsroot via shell metacharacters in the file_name JSON member in params/xen_hotfix/0 to nitro/v1/config/xen_hotfix.
The weakness was published 04/03/2015 (Website). The advisory is available at securify.nl. This vulnerability is handled as CVE-2015-2838 since 04/03/2015. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known.
A public exploit has been developed by Han Sahin and been published even before and not after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 15 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 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 vulnerability database at Exploit-DB (36442). Similar entries are available at 74074, 74077, 74078 and 74631.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 3.9
VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
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Exploiting
Class: Cross-site request forgeryCWE: CWE-352 / CWE-862 / CWE-863
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Han Sahin
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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OpenVAS ID: 801854
OpenVAS Name: Citrix NetScaler VPX large_search.html Cross-Site Scripting Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Netscaler 10.5 Build 52.3nc
Timeline
03/19/2015 🔍03/19/2015 🔍
03/19/2015 🔍
03/19/2015 🔍
04/03/2015 🔍
04/03/2015 🔍
04/03/2015 🔍
04/04/2015 🔍
04/05/2015 🔍
05/02/2022 🔍
Sources
Vendor: citrix.comAdvisory: 130937
Status: Not defined
CVE: CVE-2015-2838 (🔍)
Vulnerability Center: 49325 - Citrix NetScaler before 10.5 build 52.3nc CSRF Vulnerability via Shell Metacharacters, Medium
SecurityFocus: 73358 - Citrix NetScaler 'xen_hotfix' Page Command Injection Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 04/04/2015 09:55Updated: 05/02/2022 15:59
Changes: 04/04/2015 09:55 (60), 06/24/2017 09:37 (15), 05/02/2022 15:59 (3)
Complete: 🔍
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