Microsoft Internet Explorer 5.01/5.5 Certificate Revocation List authentication spoofing

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Microsoft Internet Explorer 5.01/5.5. Affected is an unknown function of the component Certificate Revocation List Handler. Executing a manipulation can lead to authentication spoofing. This vulnerability is registered as CVE-2001-0338. It is possible to launch the attack remotely. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Internet Explorer 5.01/5.5 (Web Browser). This vulnerability affects an unknown code block of the component Certificate Revocation List Handler. The manipulation with an unknown input leads to a authentication spoofing vulnerability. The CWE definition for the vulnerability is CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Internet Explorer 5.5 and earlier does not properly validate digital certificates when Certificate Revocation List (CRL) checking is enabled, which could allow remote attackers to spoof trusted web sites, aka the "Server certificate validation vulnerability."

The issue has been introduced in 11/08/1999. The weakness was published 06/27/2001 with Microsoft as MS01-027 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability was named CVE-2001-0338. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 597 days. During that time the estimated underground price was around $5k-$25k.

Applying the patch MS01-027 is able to eliminate this problem. The bugfix is ready for download at microsoft.com.

The vulnerability is also documented in the databases at X-Force (6555), SecurityFocus (BID 2735†) and Vulnerability Center (SBV-3122†). Similar entries are available at VDB-16829, VDB-16834 and VDB-16841. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 6.0

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

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS01-027

Timelineinfo

11/08/1999 🔍
05/16/2001 +555 days 🔍
06/27/2001 +42 days 🔍
06/27/2001 +0 days 🔍
06/27/2001 +0 days 🔍
12/09/2003 +895 days 🔍
07/04/2014 +3860 days 🔍
04/07/2017 +1008 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS01-027
Organization: Microsoft
Status: Confirmed

CVE: CVE-2001-0338 (🔍)
GCVE (CVE): GCVE-0-2001-0338
GCVE (VulDB): GCVE-100-16840
X-Force: 6555 - Microsoft Internet Explorer with certificate CRL checking enabled could allow Web site spoofing
SecurityFocus: 2735 - Microsoft Internet Explorer Server Certificate Validation Vulnerability
Vulnerability Center: 3122 - [MS01-027] Internet Explorer <= 5.5 Allows Spoofing, Medium

See also: 🔍

Entryinfo

Created: 07/04/2014 16:22
Updated: 04/07/2017 12:06
Changes: 07/04/2014 16:22 (47), 04/07/2017 12:06 (22)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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