Microsoft Internet Explorer 4.0/4.01 JScript Scripting Engine window.external memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.0 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in Microsoft Internet Explorer 4.0/4.01 (Web Browser). This vulnerability affects the function window.external
of the component JScript Scripting Engine. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
Buffer overflow in the Window.External function in the JScript Scripting Engine in Internet Explorer 4.01 SP1 and earlier allows remote attackers to execute arbitrary commands via a malicious web page.
The issue has been introduced in 04/01/1997. The weakness was published 12/31/1999 as MS98-011 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability was named CVE-1999-1093. 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 are known, but there is no available exploit.
The vulnerability was handled as a non-public zero-day exploit for at least 1004 days. During that time the estimated underground price was around $25k-$100k.
Applying the patch MS98-011 is able to eliminate this problem. The bugfix is ready for download at microsoft.com.
The vulnerability is also documented in the vulnerability database at X-Force (1276). Additional details are provided at support.microsoft.com. Similar entries are available at 15131 and 15129.
Product
Type
Vendor
Name
Version
License
Support
- end of life
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
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VulDB Reliability: 🔍
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Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: MS98-011
Timeline
04/01/1997 🔍08/17/1998 🔍
12/31/1999 🔍
12/31/1999 🔍
05/20/2004 🔍
06/22/2014 🔍
04/07/2017 🔍
Sources
Vendor: microsoft.comAdvisory: MS98-011
Status: Confirmed
CVE: CVE-1999-1093 (🔍)
X-Force: 1276 - JavaScript patch is not applied
Vulnerability Center: 4329 - [MS98-011] Buffer Overflow in the Window.External Function in Internet Explorer <= 4.01 SP1, Medium
Misc.: 🔍
See also: 🔍
Entry
Created: 06/22/2014 16:49Updated: 04/07/2017 12:06
Changes: 06/22/2014 16:49 (48), 04/07/2017 12:06 (18)
Complete: 🔍
Cache ID: 3:C68:103
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