Kaspersky ID:
KLA11139
Detect Date:
11/14/2017
Updated:
06/12/2024

Description

Multiple serious vulnerabilities have been found in Microsoft Office. Malicious users can exploit these vulnerabilities to execute arbitrary code, bypass security restrictions and privilege escalations.

Below is a complete list of vulnerabilities:

  1. Multiple vulnerabilities related to an incorrect handing of objects in memory in Microsoft Office can be exploited remotely via sending a specially designed document to affected system to execute arbitrary code;
  2. An improper user sessions management in Microsoft Project Server can be exploited remotely via a specially designed website to gain privileges;
  3. An incorrect process of processing macros settings in Excel document can be exploited remotely to bypass security restrictions;

Technical details

Vulnerability (1) requires that a user open a file with an affected version of Microsoft Office.

Original advisories

Exploitation

This vulnerability can be exploited by the following malware:

https://threats.kaspersky.com/en/threat/Exploit.MSOffice.CVE-2017-11882/

https://threats.kaspersky.com/en/threat/Exploit.Win32.CVE-2017-11882/

https://threats.kaspersky.com/en/threat/Trojan.Win32.FormBook/

https://threats.kaspersky.com/en/threat/Trojan-PSW.Win32.Azorult/

Public exploits exist for this vulnerability.

Related products

CVE list

  • CVE-2017-11854
    critical
  • CVE-2017-11876
    critical
  • CVE-2017-11877
    high
  • CVE-2017-11878
    critical
  • CVE-2017-11882
    critical
  • CVE-2017-11884
    critical

KB list

Read more

Find out the statistics of the vulnerabilities spreading in your region on statistics.securelist.com

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