Microsoft Internet Explorer 6 on Win XP SysFreeString denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Microsoft Internet Explorer 6 on Win XP. Impacted is the function SysFreeString. This manipulation causes denial of service. This vulnerability is registered as CVE-2006-7206. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Internet Explorer 6 on Win XP (Web Browser). Affected by this vulnerability is the function SysFreeString. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Microsoft Internet Explorer 6 on Windows XP SP2 allows remote attackers to cause a denial of service (crash) by creating a ADODB.Recordset object and making a series of calls to the NextRecordset method with a long string argument, which causes an "invalid memory access" in the SysFreeString function, a different issue than CVE-2006-3510 and CVE-2006-3899.

The issue has been introduced in 03/22/2001. The weakness was published 06/21/2007 by H D Moore (Website). The advisory is shared at browserfun.blogspot.com. This vulnerability is known as CVE-2006-7206 since 06/21/2007. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1499 for this issue.

After before and not just, there has been an exploit disclosed. It is possible to download the exploit at metasploit.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1953 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (28066), Exploit-DB (3577), SecurityFocus (BID 19227†) and OSVDB (27532†). Similar entry is available at VDB-37403. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/22/2001 🔍
07/27/2006 +1953 days 🔍
07/29/2006 +1 days 🔍
02/13/2007 +199 days 🔍
03/26/2007 +41 days 🔍
03/26/2007 +0 days 🔍
06/21/2007 +87 days 🔍
06/21/2007 +0 days 🔍
06/21/2007 +0 days 🔍
03/15/2015 +2824 days 🔍
07/20/2021 +2319 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: browserfun.blogspot.com
Researcher: H D Moore
Status: Not defined

CVE: CVE-2006-7206 (🔍)
GCVE (CVE): GCVE-0-2006-7206
GCVE (VulDB): GCVE-100-37405
X-Force: 28066
SecurityFocus: 19227 - Microsoft Internet Explorer ADODB.Recordset NextRecordset Denial of Service Vulnerability
OSVDB: 27532 - Microsoft IE ADODB.Recordset SysFreeString Invalid Length

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

Entryinfo

Created: 03/15/2015 15:58
Updated: 07/20/2021 14:15
Changes: 03/15/2015 15:58 (51), 05/07/2019 12:42 (13), 07/20/2021 14:15 (7)
Complete: 🔍
Cache ID: 216:698:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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