VDB-39769 · CVE-2007-6043 · BID 26495

Microsoft Windows 2000 cryptgenrandom information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Microsoft Windows 2000. This issue affects the function cryptgenrandom. This manipulation causes information disclosure. The identification of this vulnerability is CVE-2007-6043. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft Windows 2000 (Operating System). It has been declared as critical. Affected by this vulnerability is the function cryptgenrandom. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The CryptGenRandom function in Microsoft Windows 2000 generates predictable values, which makes it easier for context-dependent attackers to reduce the effectiveness of cryptographic mechanisms, as demonstrated by attacks on (1) forward security and (2) backward security, related to use of eight instances of the RC4 cipher, and possibly a related issue to CVE-2007-3898.

The issue has been introduced in 02/17/2000. The weakness was shared 11/20/2007 (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2007-6043 since 11/19/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 2833 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 90416 (Windows Insecure Random Number Generator Information Disclosure Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 26495†) and Vulnerability Center (SBV-16940†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/17/2000 🔍
11/18/2007 +2831 days 🔍
11/19/2007 +1 days 🔍
11/19/2007 +0 days 🔍
11/20/2007 +0 days 🔍
11/20/2007 +0 days 🔍
11/27/2007 +7 days 🔍
03/16/2015 +2665 days 🔍
06/02/2025 +3731 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: securityfocus.com⛔
Status: Confirmed

CVE: CVE-2007-6043 (🔍)
GCVE (CVE): GCVE-0-2007-6043
GCVE (VulDB): GCVE-100-39769
SecurityFocus: 26495 - Microsoft Windows Insecure Random Number Generator Information Disclosure Weakness
Vulnerability Center: 16940 - Microsoft Windows 2000 and Windows XP Weak Random Generator Causes Ineffective Encryption, Medium

Entryinfo

Created: 03/16/2015 13:43
Updated: 06/02/2025 03:52
Changes: 03/16/2015 13:43 (51), 09/14/2018 07:26 (10), 06/02/2025 03:52 (20)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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