Microsoft Internet Explorer 5.01/6 FTP Client wininet.dll heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Microsoft Internet Explorer 5.01/6. Affected by this vulnerability is an unknown functionality in the library wininet.dll of the component FTP Client. Executing a manipulation can lead to heap-based overflow. This vulnerability is tracked as CVE-2007-0217. The attack can be launched remotely. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Internet Explorer 5.01/6 (Web Browser). This vulnerability affects some unknown functionality in the library wininet.dll of the component FTP Client. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The wininet.dll FTP client code in Microsoft Internet Explorer 5.01 and 6 might allow remote attackers to execute arbitrary code via an FTP server response of a specific length that causes a terminating null byte to be written outside of a buffer, which causes heap corruption.

The bug was discovered 08/16/2006. The weakness was disclosed 02/13/2007 as confirmed advisory (CERT.org). The advisory is available at kb.cert.org. This vulnerability was named CVE-2007-0217. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details and also a exploit are known.

After 4 weeks, there has been an exploit disclosed. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2654 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 24340 (MS07-016: Cumulative Security Update for Internet Explorer (928090)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100045 (Cumulative Security Update for Internet Explorer (MS07-016)).

Upgrading to version 7 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 5108.

The vulnerability is also documented in the databases at X-Force (32107), Tenable (24340), SecurityFocus (BID 22489†), OSVDB (31892†) and SecurityTracker (ID 1017642†). The entries VDB-2928, VDB-2929, VDB-35003 and VDB-84963 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 24340
Nessus Name: MS07-016: Cumulative Security Update for Internet Explorer (928090)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 102054
OpenVAS Name: Cumulative Security Update for Internet Explorer (928090)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Internet Explorer 7
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

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

Timelineinfo

11/08/1999 🔍
08/16/2006 +2473 days 🔍
01/12/2007 +148 days 🔍
02/13/2007 +32 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/14/2007 +0 days 🔍
03/09/2007 +23 days 🔍
03/13/2015 +2926 days 🔍
01/12/2025 +3593 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: kb.cert.org
Status: Confirmed

CVE: CVE-2007-0217 (🔍)
GCVE (CVE): GCVE-0-2007-0217
GCVE (VulDB): GCVE-100-35002

OVAL: 🔍

CERT: 🔍
X-Force: 32107
SecurityFocus: 22489
OSVDB: 31892 - Microsoft IE FTP Server Response Parsing Memory Corruption
SecurityTracker: 1017642
Vulnerability Center: 14285 - [MS07-016] Microsoft Internet Explorer wininet.dll FTP Client Code Heap Corruption, Medium

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

Entryinfo

Created: 03/13/2015 12:16
Updated: 01/12/2025 06:07
Changes: 03/13/2015 12:16 (53), 04/07/2017 12:08 (27), 07/13/2021 11:48 (1), 07/13/2021 11:56 (7), 07/13/2021 12:03 (2), 07/13/2021 12:11 (2), 01/12/2025 06:07 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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