// For flags

CVE-2015-0077

Microsoft Windows NtUserfnINSTRINGNULL Information Leak Vulnerability

Severity Score

2.1
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The kernel-mode drivers in Microsoft 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 do not properly initialize function buffers, which allows local users to obtain sensitive information from kernel memory, and possibly bypass the ASLR protection mechanism, via a crafted application, aka "Microsoft Windows Kernel Memory Disclosure Vulnerability."

Los controladores del modo de kernel en Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 y R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold y R2, y Windows RT Gold y 8.1 no inicializan correctamente los buffers de funciones, lo que permite a usuarios locales obtener información sensible de la memoria del kernel, y posiblemente evadir el mecanismo de protección ASLR, a través de una aplicación manipulada, también conocido como 'vulnerabilidad de la divulgación de información de la memoria del kernel de Microsoft Windows.'

This vulnerability allows local attackers to leak sensitive information on vulnerable installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of NtUserfnINSTRINGNULL function. The issue lies in the failure to sanitize a buffer before calling a userland function resulting in the leak of a kernel address. An attacker can leverage this in concert with another vulnerability to achieve code execution at SYSTEM.

*Credits: WanderingGlitch of HP's Zero Day Initiative
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2014-11-18 CVE Reserved
  • 2015-03-10 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-10-21 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
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Windows 7
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-sp1
Affected
Microsoft
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Windows 8
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--
Affected
Microsoft
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Windows 8.1
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--
Affected
Microsoft
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Windows Rt
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--
Affected
Microsoft
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Windows Rt 8.1
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--
Affected
Microsoft
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Windows Server 2003
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-sp2
Affected
Microsoft
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Windows Server 2008
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-sp2
Affected
Microsoft
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Windows Server 2008
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r2
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sp1, itanium
Affected
Microsoft
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Windows Server 2008
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r2
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sp1, x64
Affected
Microsoft
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Windows Server 2012
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--
Affected
Microsoft
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Windows Server 2012
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r2
Search vendor "Microsoft" for product "Windows Server 2012" and version "r2"
-
Affected
Microsoft
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Windows Vista
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-sp2
Affected