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kasperskyKaspersky LabKLA11101
HistorySep 12, 2017 - 12:00 a.m.

KLA11101 Arbitrary code execution vulnerability in Microsoft .NET Framework

2017-09-1200:00:00
Kaspersky Lab
threats.kaspersky.com
641

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.972 High

EPSS

Percentile

99.8%

JSON

Detect date:

09/12/2017

Severity:

Critical

Description:

An improper validation of untrusted input was found in Microsoft .NET Framework. By exploiting this vulnerability malicious users can execute arbitrary code. This vulnerability can be exploited remotely via a specially designed document or application.

Affected products:

Microsoft .NET Framework 4.7
Microsoft .NET Framework 2.0
Microsoft .NET Framework 3.5
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 4.5.2
Microsoft .NET Framework 4.6
Microsoft .NET Framework 4.6.1
Microsoft .NET Framework 4.6.2

Solution:

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Original advisories:

CVE-2017-8759
CVE-2017-8759

Impacts:

ACE

Related products:

Microsoft .NET Framework

CVE-IDS:

CVE-2017-87599.3Critical

Microsoft official advisories:

KB list:

4038788
4038782
4038783
4038781
4040955
4040956
4040957
4040958
4040959
4040960
4040964
4040965
4040966
4040967
4040971
4040972
4040973
4040974
4040975
4040977
4040978
4040979
4040980
4040981

Exploitation:

This vulnerability can be exploited by the following malware:

References

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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.972 High

EPSS

Percentile

99.8%

JSON
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