Multiple vulnerabilities in Microsoft Office Outlook



Published: 2017-07-28
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2017-8663
CVE-2017-8572
CVE-2017-8571
CWE-ID CWE-119
CWE-200
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Microsoft Outlook
Client/Desktop applications / Office applications

Microsoft Office
Client/Desktop applications / Office applications

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU7592

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8663

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to boundary error when parsing email messages. A remote unauthenticated attacker can create a specially crafted email message, send it to the victim and execute arbitrary code on the target system, when the malicious email is open by the victim.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Outlook: 2007 - 2016

Microsoft Office: 2010 - 2016

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8663


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Information disclosure

EUVDB-ID: #VU7593

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8572

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists due to boundary error when parsing documents in Microsoft Outlook. A remote attacker can create a specially crafted document, trick the victim into opening it and gain access to potentially sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Outlook: 2007 - 2016

Microsoft Office: 2010 - 2016

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8572


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Improper input validation

EUVDB-ID: #VU7594

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8571

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error when processing specially crafted document in Microsoft Office Outlook. A remote attacker can create a specially crafted document, trick the victim into opening it and interact with the document by clicking a specific cell.

Successful exploitation of the vulnerability may allow an attacker to bypass certain security restrictions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Outlook: 2007 - 2016

Microsoft Office: 2010 - 2016

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8571


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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