Microsoft Internet Explorer 4.0.1/5.0/5.0.1 Server-side Redirect File link following

CVSS Meta Temp Score
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Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
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6.0$0-$5k0.00

A vulnerability was found in Microsoft Internet Explorer 4.0.1/5.0/5.0.1 (Web Browser). It has been rated as critical. This issue affects an unknown code of the component Server-side Redirect Handler. The manipulation with an unknown input leads to a link following vulnerability (File). Using CWE to declare the problem leads to CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Internet Explorer 5.01 and earlier allows a remote attacker to create a reference to a client window and use a server-side redirect to access local files via that window, aka "Server-side Page Reference Redirect."

The issue has been introduced in 11/18/1997. The weakness was disclosed 12/08/1999 as MS99-050 as confirmed bulletin (Technet). It is possible to read the advisory at microsoft.com. The identification of this vulnerability is CVE-1999-0981. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 750 days. During that time the estimated underground price was around $25k-$100k.

Applying the patch MS99-050 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 (3663). support.microsoft.com is providing further details. The entry 15043 is pretty similar.

Productinfo

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Support

  • end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT 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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Name: File
Class: Link following / File
CWE: CWE-59
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS99-050

Timelineinfo

11/18/1997 🔍
12/08/1999 +750 days 🔍
12/08/1999 +0 days 🔍
12/08/1999 +0 days 🔍
03/24/2004 +1568 days 🔍
06/22/2014 +3742 days 🔍
04/07/2017 +1020 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS99-050
Status: Confirmed

CVE: CVE-1999-0981 (🔍)
X-Force: 3663
Vulnerability Center: 4035 - [MS99-050] Server-side Page Reference Redirect in Internet Explorer < 5.01, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 06/22/2014 15:49
Updated: 04/07/2017 12:06
Changes: 06/22/2014 15:49 (49), 04/07/2017 12:06 (16)
Complete: 🔍

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