Citrix Access Gateway up to 4.4 memory corruption

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-$5k	0.00

Summaryinfo

A vulnerability was found in Citrix Access Gateway up to 4.4. It has been rated as critical. Affected by this issue is some unknown functionality. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2007-4016. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Citrix Access Gateway up to 4.4 (Connectivity Software). Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Unspecified vulnerability in the client components in Citrix Access Gateway Standard Edition before 4.5.5 and Advanced Edition before 4.5 HF1 allows attackers to execute arbitrary code via unspecified vectors.

The bug was discovered 07/19/2007. The weakness was disclosed 07/17/2007 by Paul with Corsaire (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2007-4016 since 07/25/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept.

Upgrading to version 4.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (35668), SecurityFocus (BID 24975†), OSVDB (43983†), Secunia (SA26143†) and SecurityTracker (ID 1018435†). The entries VDB-38019, VDB-38018, VDB-38014 and VDB-37969 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Connectivity Software

Vendor

Citrix

Name

Access Gateway

Version

License

commercial

Website

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

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

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Access Gateway 4.5

Timelineinfo

07/17/2007 🔍
07/19/2007 +2 days 🔍
07/19/2007 +0 days 🔍
07/20/2007 +1 days 🔍
07/20/2007 +0 days 🔍
07/25/2007 +5 days 🔍
07/25/2007 +0 days 🔍
07/25/2007 +0 days 🔍
08/05/2007 +11 days 🔍
04/02/2008 +241 days 🔍
03/15/2015 +2537 days 🔍
07/23/2019 +1591 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: securityfocus.com⛔
Researcher: Paul
Organization: Corsaire
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-4016 (🔍)
GCVE (CVE): GCVE-0-2007-4016
GCVE (VulDB): GCVE-100-38017
X-Force: 35668
SecurityFocus: 24975 - Citrix Access Gateway Standard and Advanced Edition Multiple Remote Vulnerabilities
Secunia: 26143
OSVDB: 43983 - Citrix Access Gateway Client Components Unspecified Arbitrary Code Execution
SecurityTracker: 1018435
Vulnerability Center: 15761 - Citrix Access Gateway Multiple Client Components Unspecified Vulnerabilities, Medium
Vupen: ADV-2007-2583

See also: 🔍

Entryinfo

Created: 03/15/2015 15:58
Updated: 07/23/2019 07:02
Changes: 03/15/2015 15:58 (73), 07/23/2019 07:02 (1)
Complete: 🔍
Cache ID: 216:BD4:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.