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.
5.1	$0-$5k	0.00

A vulnerability classified as problematic was found in Microsoft ISA Server 2004 (Firewall Software). Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

The SOCKS4 Proxy in Microsoft Internet Security and Acceleration (ISA) Server 2004 SP1 and SP2 allows remote attackers to obtain potentially sensitive information (the destination IP address of another user s session) via an empty packet.

The weakness was shared 09/20/2007 by CIRT with CIRT.DK (Website). It is possible to read the advisory at zerodayinitiative.com. This vulnerability is known as CVE-2007-4991 since 09/20/2007. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

It is declared as highly functional.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at X-Force (36715).

Productinfo

Type

• Firewall Software

Vendor

• Microsoft

Name

• ISA Server

Version

• 2004

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

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: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/20/2007 🔍
09/20/2007 +0 days 🔍
09/20/2007 +0 days 🔍
09/21/2007 +1 days 🔍
09/21/2007 +0 days 🔍
06/03/2008 +256 days 🔍
03/16/2015 +2476 days 🔍
10/29/2017 +958 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: zerodayinitiative.com
Researcher: CIRT
Organization: CIRT.DK
Status: Confirmed

CVE: CVE-2007-4991 (🔍)
X-Force: 36715 - Microsoft Internet Security and Acceleration (ISA) Server SOCKS4 information disclosure
SecurityTracker: 1018727 - Microsoft Internet Security and Acceleration Server SOCKS4 Proxy Discloses IP Address Information to Remote Users
SecurityFocus: 25753 - Microsoft ISA Server SOCKS4 Proxy Connection Remote Information Disclosure Vulnerability
OSVDB: 45906 - Microsoft ISA Server SOCKS4 Proxy Empty Packet Cross Session Destination IP Disclosure

Entryinfo

Created: 03/16/2015 12:18
Updated: 10/29/2017 11:57
Changes: 03/16/2015 12:18 (57), 10/29/2017 11:57 (7)
Complete: 🔍

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