Citrix Access Gateway up to 4.4 Firmware Remote Code Execution

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.
6.6$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Citrix Access Gateway up to 4.4. This vulnerability affects unknown code of the component Firmware. Performing a manipulation results in Remote Code Execution. This vulnerability is cataloged as CVE-2007-4018. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Citrix Access Gateway up to 4.4 (Connectivity Software). This affects some unknown functionality of the component Firmware. The manipulation with an unknown input leads to a remote code execution vulnerability. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Citrix Access Gateway Advanced Edition before firmware 4.5.5 allows attackers to redirect users to arbitrary web sites and conduct phishing attacks via unknown vectors.

The bug was discovered 07/19/2007. The weakness was shared 07/19/2007 by Paul with Corsaire (Website). It is possible to read the advisory at support.citrix.com. This vulnerability is uniquely identified as CVE-2007-4018 since 07/25/2007. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k.

Upgrading to version 4.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (35512), SecurityFocus (BID 24975†), OSVDB (37840†), Secunia (SA26143†) and SecurityTracker (ID 1018435†). The entries VDB-38018, VDB-38017, VDB-38014 and VDB-37969 are related to this item. 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: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Access Gateway 4.5

Timelineinfo

07/19/2007 🔍
07/19/2007 +0 days 🔍
07/19/2007 +0 days 🔍
07/19/2007 +0 days 🔍
07/20/2007 +0 days 🔍
07/20/2007 +0 days 🔍
07/20/2007 +0 days 🔍
07/25/2007 +4 days 🔍
07/25/2007 +0 days 🔍
08/05/2007 +11 days 🔍
03/15/2015 +2779 days 🔍
07/23/2019 +1591 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: support.citrix.com
Researcher: Paul
Organization: Corsaire
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-4018 (🔍)
GCVE (CVE): GCVE-0-2007-4018
GCVE (VulDB): GCVE-100-38019
X-Force: 35512
SecurityFocus: 24975 - Citrix Access Gateway Standard and Advanced Edition Multiple Remote Vulnerabilities
Secunia: 26143
OSVDB: 37840 - Citrix Access Gateway Advanced Edition Unspecified Site Redirection
SecurityTracker: 1018435
Vulnerability Center: 15763 - Citrix Access Gateway <4.5.5 Allows Redirection of Users to Web Sites and Phishing Attacks, Medium
Vupen: ADV-2007-2583

See also: 🔍

Entryinfo

Created: 03/15/2015 15:58
Updated: 07/23/2019 07:23
Changes: 03/15/2015 15:58 (73), 07/23/2019 07:23 (1)
Complete: 🔍
Cache ID: 216:F3B: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.

Interested in the pricing of exploits?

See the underground prices here!