Microsoft Visual Basic 6.0 memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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10.0$0-$5k0.00

A vulnerability, which was classified as very critical, has been found in Microsoft Visual Basic 6.0. This issue affects an unknown code. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in Microsoft Visual Basic 6.0 and Enterprise Edition 6.0 SP6 allows user-assisted remote attackers to execute arbitrary code via a Visual Basic project (vbp) file containing a long Reference line, related to VBP_Open and OLE. NOTE: there are limited usage scenarios under which this would be a vulnerability.

The weakness was presented 09/04/2007 by Koshi (Website). The advisory is shared at securitytracker.com. The identification of this vulnerability is CVE-2007-4776 since 09/10/2007. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/12/2017).

A public exploit has been developed by Koshi and been published immediately after the advisory. The exploit is available at saintcorporation.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $25k-$100k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Attack attempts may be identified with Snort ID 12618. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 5630.

The vulnerability is also documented in the databases at X-Force (36562) and Exploit-DB (4361).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 10.0

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Koshi
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Saint ID: exploit_info/visual_basic_vbp
Saint Name: Microsoft Visual Basic VBP file buffer overflow

MetaSploit ID: ms_visual_basic_vbp.rb
MetaSploit Name: Microsoft Visual Basic VBP Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍
Snort ID: 12618
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

09/04/2007 🔍
09/04/2007 +0 days 🔍
09/04/2007 +0 days 🔍
09/04/2007 +0 days 🔍
09/10/2007 +6 days 🔍
09/10/2007 +0 days 🔍
09/10/2007 +0 days 🔍
09/11/2007 +1 days 🔍
09/11/2007 +0 days 🔍
09/12/2007 +0 days 🔍
08/02/2009 +690 days 🔍
03/16/2015 +2052 days 🔍
02/12/2017 +699 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: securitytracker.com⛔
Researcher: Koshi
Status: Confirmed

CVE: CVE-2007-4776 (🔍)
X-Force: 36562
SecurityTracker: 1018676 - Microsoft Visual Basic VBP File Buffer Overflow Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 23027 - Microsoft Visual Basic 6.0 Buffer Overflow Remote Code Execution via a Visual Basic Project File, Medium
SecurityFocus: 25629 - Microsoft Visual Basic 6.0 VBP_Open Project File Handling Buffer Overflow Vulnerability
Secunia: 26704 - Microsoft Visual Basic VBP File Processing Buffer Overflow, Moderately Critical
OSVDB: 36936 - Microsoft Visual Basic VBP File Handling Overflow

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

Entryinfo

Created: 03/16/2015 12:18
Updated: 02/12/2017 13:03
Changes: 03/16/2015 12:18 (67), 02/12/2017 13:03 (21)
Complete: 🔍

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