SB2018042106 - Remote code execution in Microsoft VBScript engine
Published: April 21, 2018 Updated: August 2, 2022
Security Bulletin ID
SB2018042106
CSH Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory corruption (CVE-ID: CVE-2018-8174)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the VBScript engine. A remote attacker can trick the victim into visiting a specially crafted website or open a malicious Office file and execute arbitrary code on the target system.
Note: the vulnerability is being actively exploited in the wild against victims in Asia region. The vulnerability is dubbed "double play".
Remediation
Install update from vendor's website.
References
- https://twitter.com/360CoreSec/status/987229032994361345
- https://www.eshlomo.us/apt-group-exploited-unpatched-0-day-in-ie/
- https://www.bleepingcomputer.com/news/security/internet-explorer-zero-day-exploited-in-the-wild-by-a...
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8174