Microsoft Windows up to XP X.509 Certificate Processor Crypt32.dll/Wcrypt32.dll input validation

CVSS Meta Temp Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Windows up to XP and classified as problematic. This issue affects some unknown processing in the library Crypt32.dll/Wcrypt32.dll of the component X.509 Certificate Processor. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2013-3869. The attack is possible to be carried out remotely. No exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Microsoft Windows up to XP (Operating System) and classified as problematic. This issue affects an unknown part in the library Crypt32.dll/Wcrypt32.dll of the component X.509 Certificate Processor. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allow remote attackers to cause a denial of service (daemon hang) via a web-service request containing a crafted X.509 certificate that is not properly handled during validation, aka "Digital Signatures Vulnerability."

The weakness was disclosed 11/12/2013 by James Forshaw with Context Information Security as MS13-095 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. The public release has been coordinated in cooperation with Microsoft. The identification of this vulnerability is CVE-2013-3869 since 06/03/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 70853 (MS13-095: Vulnerability in Digital Signatures Could Allow Denial of Service (2868626)), 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 90920 (Microsoft Windows Digital Signatures Denial of Service Vulnerability (MS13-095)).

Applying the patch MS13-095 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 13495.

The vulnerability is also documented in the databases at Tenable (70853), SecurityFocus (BID 63561†), OSVDB (99649†), Secunia (SA55629†) and Vulnerability Center (SBV-42286†). The entries VDB-11150 and VDB-11145 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Windows XP SP3
  • Windows Vista SP2
  • Windows Server 2008 SP2
  • Windows 7 SP1
  • Windows Server 2003 SP2
  • Windows Server 2008 R2 SP1
  • Windows 8 SP0
  • Windows Server 2012 SP0
  • Windows RT SP0
  • Windows XP Professional 64-bit Edition SP2
  • Windows Server 2012 R2 SP0
  • Windows 8.1 SP0
  • Windows RT 8.1 SP0

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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Nessus ID: 70853
Nessus Name: MS13-095: Vulnerability in Digital Signatures Could Allow Denial of Service (2868626)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS13-095
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

06/03/2013 🔍
11/12/2013 +161 days 🔍
11/12/2013 +0 days 🔍
11/12/2013 +0 days 🔍
11/12/2013 +0 days 🔍
11/12/2013 +0 days 🔍
11/12/2013 +0 days 🔍
11/13/2013 +1 days 🔍
11/13/2013 +0 days 🔍
11/15/2013 +2 days 🔍
12/25/2024 +4058 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS13-095
Researcher: James Forshaw
Organization: Context Information Security
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-3869 (🔍)
GCVE (CVE): GCVE-0-2013-3869
GCVE (VulDB): GCVE-100-11147

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 63561
Secunia: 55629 - Microsoft Windows X.509 Certificate Parsing Denial of Service Vulnerability, Less Critical
OSVDB: 99649 - Microsoft Windows Web Service X.509 Certificate Handling Remote DoS
Vulnerability Center: 42286 - [MS13-095] Microsoft Windows Remote Denial of Service via a Web-Service Request, High

scip Labs: https://www.scip.ch/en/?labs.20140213
See also: 🔍

Entryinfo

Created: 11/15/2013 11:37
Updated: 12/25/2024 22:10
Changes: 11/15/2013 11:37 (53), 08/19/2018 19:58 (26), 06/02/2021 07:43 (8), 06/02/2021 07:49 (2), 06/02/2021 07:55 (1), 12/25/2024 22:10 (16)
Complete: 🔍
Committer:
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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