Microsoft Internet Explorer 7 Charset Inheritance cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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6.0$5k-$25k0.00

A vulnerability classified as critical has been found in Microsoft Internet Explorer 7 (Web Browser). This affects an unknown function of the component Charset Inheritance Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The child frames in Microsoft Internet Explorer 7 inherit the default charset from the parent window when a charset is not specified in an HTTP Content-Type header or META tag, which allows remote attackers to conduct cross-site scripting (XSS) attacks, as demonstrated using the UTF-7 character set.

The bug was discovered 10/11/2006. The weakness was released 02/26/2007 by Stefan Esser (Website). The advisory is shared at hardened-php.net. This vulnerability is uniquely identified as CVE-2007-1114 since 02/26/2007. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 03/15/2021). It is expected to see the exploit prices for this product decreasing in the near future.MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 579 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 25036 (Opera < 9.20 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (32722) and Tenable (25036). Entries connected to this vulnerability are available at 2963, 35740, 35235 and 35233.

Productinfo

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  • end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Cross site scripting
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 25036
Nessus Name: Opera < 9.20 Multiple Vulnerabilities
Nessus File: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/27/2005 🔍
10/11/2006 +441 days 🔍
02/23/2007 +135 days 🔍
02/23/2007 +0 days 🔍
02/26/2007 +3 days 🔍
02/26/2007 +0 days 🔍
02/26/2007 +0 days 🔍
02/26/2007 +0 days 🔍
03/01/2007 +2 days 🔍
04/14/2007 +44 days 🔍
06/27/2010 +1170 days 🔍
03/15/2021 +3914 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: hardened-php.net
Researcher: Stefan Esser
Status: Not defined

CVE: CVE-2007-1114 (🔍)
X-Force: 32722
Vulnerability Center: 26143 - Microsoft Internet Explorer 7 Child Frames Cross-Site Scripting (XSS) Vulnerability, Medium
SecurityFocus: 22701 - Multiple Web Browser UTF-7 Cross-Domain Character-Set-Inheritance Vulnerability
Secunia: 24314 - Internet Explorer Charset Inheritance Cross-Site Scripting Vulnerability, Less Critical
OSVDB: 32119 - Microsoft IE Cross Domain Charset Inheritance Weakness
Vupen: ADV-2007-0744

See also: 🔍

Entryinfo

Created: 03/01/2007 10:02
Updated: 03/15/2021 10:06
Changes: 03/01/2007 10:02 (75), 04/07/2017 12:01 (9), 03/15/2021 10:06 (2)
Complete: 🔍

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