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kasperskyKaspersky LabKLA11350
HistoryNov 13, 2018 - 12:00 a.m.

KLA11350 PE vulnerability in Microsoft Exchange Server

2018-11-1300:00:00
Kaspersky Lab
threats.kaspersky.com
562

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

7.8 High

AI Score

Confidence

High

0.029 Low

EPSS

Percentile

90.8%

Incorrect requests handling vulnerability was found in Microsoft Exchange Server. Malicious users can exploit this vulnerability to gain privileges.

Original advisories

CVE-2018-8581

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Microsoft-Exchange-Server

CVE list

CVE-2018-8581 high

KB list

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)

Impacts

  • PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

Affected Products

  • Microsoft Exchange Server 2016Microsoft Exchange Server 2010Microsoft Exchange Server 2013Microsoft Exchange Server 2019

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

7.8 High

AI Score

Confidence

High

0.029 Low

EPSS

Percentile

90.8%