Microsoft Internet Explorer 5/6 HTTPS Proxy information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Microsoft Internet Explorer 5/6. This affects an unknown part of the component HTTPS Proxy. Such manipulation leads to information disclosure. This vulnerability is documented as CVE-2005-2830. The attack can be executed remotely. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer 5/6 (Web Browser). It has been rated as problematic. Affected by this issue is an unknown code block of the component HTTPS Proxy. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

Microsoft Internet Explorer 5.01, 5.5, and 6, when using an HTTPS proxy server that requires Basic Authentication, sends URLs in cleartext, which allows remote attackers to obtain sensitive information, aka "HTTPS Proxy Vulnerability."

The issue has been introduced in 06/02/1998. The weakness was released 12/13/2005 as MS05-054 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability is handled as CVE-2005-2830 since 09/07/2005. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2751 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 20299 (MS05-054: Cumulative Security Update for Internet Explorer (905915)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100032 (Microsoft Windows Cumulative Update For Internet Explorer Missing (MS05-054)).

Applying the patch MS05-054 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 3978.

The vulnerability is also documented in the databases at X-Force (23451), Tenable (20299), SecurityFocus (BID 15825†), Secunia (SA15368†) and SecurityTracker (ID 1015350†). Entries connected to this vulnerability are available at VDB-1537, VDB-1914, VDB-1915 and VDB-27457. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 20299
Nessus Name: MS05-054: Cumulative Security Update for Internet Explorer (905915)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS05-054
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

06/02/1998 🔍
09/07/2005 +2654 days 🔍
12/13/2005 +97 days 🔍
12/13/2005 +0 days 🔍
12/13/2005 +0 days 🔍
12/13/2005 +0 days 🔍
12/13/2005 +0 days 🔍
12/14/2005 +1 days 🔍
12/14/2005 +0 days 🔍
12/14/2005 +0 days 🔍
06/29/2025 +7137 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS05-054
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-2830 (🔍)
GCVE (CVE): GCVE-0-2005-2830
GCVE (VulDB): GCVE-100-1916

OVAL: 🔍

X-Force: 23451
SecurityFocus: 15825 - Microsoft Internet Explorer HTTPS Proxy Information Disclosure Vulnerability
Secunia: 15368 - Microsoft Internet Explorer Multiple Vulnerabilities, Highly Critical
SecurityTracker: 1015350 - Microsoft Internet Explorer Bug in Using HTTPS Proxies May Disclose Web URLs to Remote Users
Vulnerability Center: 9970 - [MS05-054] Microsoft Internet Explorer HTTPS Proxy Basic Authentication Information Disclosure, Medium
Vupen: ADV-2005-2867

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

Entryinfo

Created: 12/14/2005 08:26
Updated: 06/29/2025 18:09
Changes: 12/14/2005 08:26 (78), 04/07/2017 12:01 (18), 03/12/2021 09:33 (3), 06/29/2025 18:09 (18)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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