Citrix Access Gateway up to 8.1-69.4 NTLM Authentication line 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.
9.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Citrix Access Gateway up to 8.1-69.4. It has been rated as critical. This affects an unknown part of the component NTLM Authentication. Performing a manipulation of the argument line results in privileges management. This vulnerability is identified as CVE-2010-4566. Additionally, an exploit exists.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Citrix Access Gateway up to 8.1-69.4 (Connectivity Software). This affects an unknown function of the component NTLM Authentication. The manipulation of the argument line with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The web authentication form in the NT4 authentication component in Citrix Access Gateway Enterprise Edition 9.2-49.8 and earlier, and the NTLM authentication component in Access Gateway Standard and Advanced Editions before Access Gateway 5.0, allows attackers to execute arbitrary commands via shell metacharacters in the password field.

The weakness was released 12/14/2010 by George D. Gal (Website). It is possible to read the advisory at vsecurity.com. This vulnerability is uniquely identified as CVE-2010-4566. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/20/2025). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

A public exploit has been developed by Metasploit in Ruby and been published 3 months after the advisory. The exploit is shared for download at securityfocus.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121702 (Citrix Access Gateway Arbitrary Command Injection Vulnerability (CTX127613)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (16916), SecurityFocus (BID 45402†), OSVDB (70099†), SecurityTracker (ID 1024893†) and Vulnerability Center (SBV-29030†). 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: 9.8
VulDB Meta Temp Score: 9.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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: 🔍
Access: Public
Status: Highly functional
Author: Metasploit
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: citrix_access_gateway_exec.rb
MetaSploit Name: Citrix Access Gateway Command Execution
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

12/14/2010 🔍
12/15/2010 +1 days 🔍
12/15/2010 +0 days 🔍
12/20/2010 +4 days 🔍
12/22/2010 +2 days 🔍
01/11/2011 +19 days 🔍
01/14/2011 +3 days 🔍
03/03/2011 +48 days 🔍
03/03/2011 +0 days 🔍
03/19/2015 +1477 days 🔍
01/20/2025 +3595 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: vsecurity.com
Researcher: George D. Gal
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-4566 (🔍)
GCVE (CVE): GCVE-0-2010-4566
GCVE (VulDB): GCVE-100-56091
SecurityFocus: 45402 - Citrix Access Gateway User Credentials Command Injection Vulnerability
OSVDB: 70099 - Citrix Access Gateway NT4 / NTLM Authentication Component samedit Utility Arbitrary Command Injection
SecurityTracker: 1024893
Vulnerability Center: 29030 - Citrix Access Gateway NTLM/NT4 Authentication Component Remote Code Execution Vulnerability, Critical

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/19/2015 23:27
Updated: 01/20/2025 06:39
Changes: 03/19/2015 23:27 (57), 03/13/2017 09:39 (16), 10/12/2021 13:08 (4), 08/02/2024 06:49 (16), 11/26/2024 12:23 (2), 01/20/2025 06:39 (2)
Complete: 🔍
Cache ID: 216::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 ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!