Microsoft Web Proxy Auto-Discovery Feature

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Web Proxy. It has been classified as problematic. This issue affects some unknown processing of the component Auto-Discovery Feature. The manipulation leads to an unknown weakness. This vulnerability is documented as CVE-2007-5355. There is not any exploit available. Disabling the affected component is recommended.

Detailsinfo

A vulnerability was found in Microsoft Web Proxy (Firewall Software) (unknown version). It has been rated as problematic. This issue affects an unknown code block of the component Auto-Discovery Feature. Impacted is confidentiality, and integrity. The summary by CVE is:

The Web Proxy Auto-Discovery (WPAD) feature in Microsoft Internet Explorer 6 and 7, when a primary DNS suffix with three or more components is configured, resolves an unqualified wpad hostname in a second-level domain outside this configured DNS domain, which allows remote WPAD servers to conduct man-in-the-middle (MITM) attacks.

The bug was discovered 12/03/2007. The weakness was released 12/04/2007 by Beau Butler as confirmed bulletin (Technet). It is possible to read the advisory at microsoft.com. The identification of this vulnerability is CVE-2007-5355 since 10/10/2007. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 62055 (Microsoft Web Proxy Auto Discovery (WPAD) Information Disclosure Vulnerability).

Applying a patch 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 (38826), SecurityFocus (BID 26686†), OSVDB (39900†), Secunia (SA27901†) and SecurityTracker (ID 1019033†). blogs.zdnet.com is providing further details. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
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: Unknown
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Disable
Status: 🔍

0-Day Time: 🔍

Patch: microsoft.com

Timelineinfo

10/10/2007 🔍
12/03/2007 +54 days 🔍
12/03/2007 +0 days 🔍
12/03/2007 +0 days 🔍
12/04/2007 +1 days 🔍
12/04/2007 +0 days 🔍
12/04/2007 +0 days 🔍
12/05/2007 +0 days 🔍
12/05/2007 +0 days 🔍
12/06/2007 +1 days 🔍
12/18/2007 +12 days 🔍
06/02/2025 +6376 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: microsoft.com
Researcher: Beau Butler
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-5355 (🔍)
GCVE (CVE): GCVE-0-2007-5355
GCVE (VulDB): GCVE-100-3491
X-Force: 38826
SecurityFocus: 26686 - Microsoft Web Proxy Auto-Discovery Proxy Spoofing Vulnerability
Secunia: 27901 - Microsoft Web Proxy Auto-Discovery Feature Security Issue, Less Critical
OSVDB: 39900 - Microsoft Web Proxy Auto-Discovery (WPAD) Crafted DNS MitM Weakness
SecurityTracker: 1019033
Vulnerability Center: 17012 - Microsoft Internet Explorer WPAD Feature Vulnerability Allows to Conduct Man-In-The-Middle Attack, Medium
Vupen: ADV-2007-4064

Misc.: 🔍

Entryinfo

Created: 12/18/2007 17:25
Updated: 06/02/2025 16:40
Changes: 12/18/2007 17:25 (82), 08/01/2019 09:53 (1), 06/02/2025 16:40 (18)
Complete: 🔍
Cache ID: 216:773:103

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