SB2018050826 - Multiple vulnerabilities in Microsoft Internet Explorer
Published: May 8, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 secuirty vulnerabilities.
1) Memory corruption (CVE-ID: CVE-2018-8114)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper handling of objects in memory in Internet Explorer by the scripting engine. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Memory corruption (CVE-ID: CVE-2018-0955)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper handling of objects in memory in Internet Explorer by the scripting engine. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Memory corruption (CVE-ID: CVE-2018-8122)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper handling of objects in memory in Internet Explorer by the scripting engine. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Security restrictions bypass (CVE-ID: CVE-2018-8126)
The vulnerability allows a remote attacker to bypass security restrictions.
The vulnerability exists due to an error when Internet Explorer fails to validate User Mode Code Integrity (UMCI) policies. A remote attacker can trick the victim into visiting a specially crafted website, run unsigned malicious code as though it were signed by a trusted source and bypass Device Guard UMCI policies.
5) Memory corruption (CVE-ID: CVE-2018-8178)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper handling of objects in memory by Microsoft browsers. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
6) Memory corruption (CVE-ID: CVE-2018-1022)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper handling of objects in memory in Microsoft browsers by the scripting engine. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
7) Information disclosure (CVE-ID: CVE-2018-1025)
The vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists due to improper handling objects in memory by Microsoft browsers. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and gain access to potentially sensitive information.
8) Memory corruption (CVE-ID: CVE-2018-0954)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper handling of objects in memory in Microsoft browsers by the scripting engine. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
9) Information disclosure (CVE-ID: CVE-2018-8145)
The vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists due to improper disclosure of the contents of its memory by Chakra. A remote attacker with knowledge of the memory address of where the object was created can gain access to potentially sensitive information that can be used to conduct further attacks.
Remediation
Install update from vendor's website.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8114
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0955
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8122
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8126
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8178
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-1022
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-1025
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0954
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8145