Multiple vulnerabilities in Microsoft Exchange

Published: 2018-08-14 21:28:20
Severity High
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2018-8302
CVE-2018-8374
CVSSv3 8.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
5.5 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CWE ID CWE-119
CWE-284
Exploitation vector Network
Public exploit N/A
Vulnerable software Microsoft Exchange Server
Vulnerable software versions Microsoft Exchange Server 2016 Cumulative Update 10
Microsoft Exchange Server 2016 Cumulative Update 9
Microsoft Exchange Server 2016 Cumulative Update 8

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Vendor URL Microsoft

Security Advisory

1) Buffer overflow

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when processing email messages within Microsoft Exchange server. A remote unauthenticated attacker can send a specially crafted email, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install updates from vendor's website.

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8302

2) Improper access control

Description

The vulnerability allows a remote attacker to change profile data of other Exchange users.

The vulnerability exists due to an error when processing data profiles. a remote authenticated attacker can change profile data of another Exchange user.


Remediation

Install updates from vendor's website.

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8374

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