CVE-2018-8266
published 2018-08-15CVE-2018-8266: A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting…
PriorityP351high7.5CVSS 3.0
AVNACHPRNUIRSUCHIHAH
EPSS
27.05%
97.8th percentile
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8380, CVE-2018-8381, CVE-2018-8384.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | chakracore | <= 1.10.1 | — |
| microsoft | chakracore | — | — |
| msrc | chakracore | — | — |
| msrc | microsoft_edge_on_windows_10_for_32-bit_systems | — | — |
| msrc | microsoft_edge_on_windows_10_for_x64-based_systems | — | — |
| msrc | microsoft_edge_on_windows_10_version_1607_for_32-bit_systems | — | — |
| msrc | microsoft_edge_on_windows_10_version_1607_for_x64-based_systems | — | — |
| msrc | microsoft_edge_on_windows_10_version_1703_for_32-bit_systems | — | — |
| msrc | microsoft_edge_on_windows_10_version_1703_for_x64-based_systems | — | — |
| msrc | microsoft_edge_on_windows_10_version_1709_for_32-bit_systems | — | — |
| msrc | microsoft_edge_on_windows_10_version_1709_for_x64-based_systems | — | — |
| msrc | microsoft_edge_on_windows_10_version_1803_for_32-bit_systems | — | — |
| msrc | microsoft_edge_on_windows_10_version_1803_for_x64-based_systems | — | — |
| msrc | microsoft_edge_on_windows_server_2016 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Vulnerability targets the Chakra scripting engine's handling of objects in memory in Microsoft Edge (HTML-based); focus detection on memory corruption patterns in the ChakraCore/Edge process (e.g., microsoftedge.exe / chakra.dll) triggered by crafted web content. ↗
- →Attack vector is web-based; monitor for Microsoft Edge navigating to suspicious or newly-registered domains hosting crafted HTML/JS content, especially where the page solicits no user interaction beyond a visit. ↗
- →Also monitor for exploitation via compromised legitimate sites or ad-network injection delivering malicious JavaScript targeting ChakraCore. ↗
- ·Microsoft assessed exploitation as 'More Likely' for the latest software release at time of disclosure, but confirmed no in-the-wild exploitation or public PoC at time of patch release. ↗
- ·The fix was delivered via ChakraCore v1.10.2 and several Windows cumulative updates (KB4343885, KB4343909, KB4343897, KB4343892, KB4343887); unpatched systems running older ChakraCore/Edge versions remain at risk. ↗
- ·CVE-2018-8266 is one of four related Chakra scripting engine memory corruption CVEs patched in the same cycle; ensure detections and patch validation cover the full set (CVE-2018-8266, CVE-2018-8380, CVE-2018-8381, CVE-2018-8384). ↗
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.07.6HIGHAV:N/AC:H/Au:N/C:C/I:C/A:C
ghsa7.5HIGH
osv7.5HIGH
vendor_msrc4.2MEDIUM
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OSV
ChakraCore RCE Vulnerability
osv·2022-05-13·CVSS 7.5
CVE-2018-8381 [HIGH] ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8266, CVE-2018-8380, CVE-2018-8384.
GHSA
ChakraCore RCE Vulnerability
ghsa·2022-05-13·CVSS 7.5
CVE-2018-8381 [HIGH] CWE-787 ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8266, CVE-2018-8380, CVE-2018-8384.
OSV
ChakraCore RCE Vulnerability
osv·2022-05-13·CVSS 7.5
CVE-2018-8384 [HIGH] ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8266, CVE-2018-8380, CVE-2018-8381.
GHSA
ChakraCore remote code execution vulnerability
ghsa·2022-05-13·CVSS 7.5
CVE-2018-8380 [HIGH] CWE-787 ChakraCore remote code execution vulnerability
ChakraCore remote code execution vulnerability
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8266, CVE-2018-8381, CVE-2018-8384.
OSV
ChakraCore RCE Vulnerability
osv·2022-05-13·CVSS 7.5
CVE-2018-8266 [HIGH] ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8380, CVE-2018-8381, CVE-2018-8384.
GHSA
ChakraCore RCE Vulnerability
ghsa·2022-05-13·CVSS 7.5
CVE-2018-8266 [HIGH] CWE-787 ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8380, CVE-2018-8381, CVE-2018-8384.
OSV
ChakraCore remote code execution vulnerability
osv·2022-05-13·CVSS 7.5
CVE-2018-8380 [HIGH] ChakraCore remote code execution vulnerability
ChakraCore remote code execution vulnerability
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8266, CVE-2018-8381, CVE-2018-8384.
GHSA
ChakraCore RCE Vulnerability
ghsa·2022-05-13·CVSS 7.5
CVE-2018-8384 [HIGH] CWE-843 ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8266, CVE-2018-8380, CVE-2018-8381.
Microsoft
Chakra Scripting Engine Memory Corruption Vulnerability
vendor_msrc·2018-08-14·CVSS 4.2
CVE-2018-8266 [HIGH] Chakra Scripting Engine Memory Corruption Vulnerability
Chakra Scripting Engine Memory Corruption Vulnerability
Description: A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge (HTML-based). The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
In a web-based attack scenario, an attacker could host a
No detection rules found.
No public exploits indexed.
Trendmicro
August Patch Tuesday: A Tale of Two Zero-Days
blogs_trendmicro·2018-08-15·CVSS 7.5
[HIGH] August Patch Tuesday: A Tale of Two Zero-Days
Ausnutzung von Schwachstellen
## August Patch Tuesday: A Tale of Two Zero-Days
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
By: Trend Micro Aug 15, 2018 Read time: ( words)
Save to Folio
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
The first of these zero day vulnerabilities is CVE-2018-8373 , a use-after-free (UAF) vulnerability in VBscript engine that Trend Micro researchers found in Internet Explorer. This vulnerability bears many similarities to CVE-2018-8174 , another VBscript engine vulnerability that was patched back in May . Successful exploitation of this vulnerability could
Trendmicro
August Patch Tuesday: A Tale of Two Zero-Days
blogs_trendmicro·2018-08-15·CVSS 7.5
CVE-2018-8373 [HIGH] August Patch Tuesday: A Tale of Two Zero-Days
Exploits y vulnerabilidades
## August Patch Tuesday: A Tale of Two Zero-Days
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
By: Trend Micro Aug 15, 2018 Read time: ( words)
Save to Folio
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
The first of these zero day vulnerabilities is CVE-2018-8373 , a use-after-free (UAF) vulnerability in VBscript engine that Trend Micro researchers found in Internet Explorer. This vulnerability bears many similarities to CVE-2018-8174 , another VBscript engine vulnerability that was patched back in May . Successful exploitation of this vulnerability could a
Trendmicro
August Patch Tuesday: A Tale of Two Zero-Days
blogs_trendmicro·2018-08-15·CVSS 7.5
CVE-2018-8373 [HIGH] August Patch Tuesday: A Tale of Two Zero-Days
Exploits & Vulnerabilities
# August Patch Tuesday: A Tale of Two Zero-Days
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
By: Trend Micro
2018/08/15
Read time: ( words)
Save to Folio
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
The first of these zero day vulnerabilities is CVE-2018-8373, a use-after-free (UAF) vulnerability in VBscript engine that Trend Micro researchers found in Internet Explorer. This vulnerability bears many similarities to CVE-2018-8174, another VBscript engine vulnerability that was patched back in May. Successful exploitation of this vulnerability could allow a
Trendmicro
August Patch Tuesday: A Tale of Two Zero-Days
blogs_trendmicro·2018-08-15·CVSS 7.5
CVE-2018-8373 [HIGH] August Patch Tuesday: A Tale of Two Zero-Days
Exploits & Vulnerabilities
## August Patch Tuesday: A Tale of Two Zero-Days
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
By: Trend Micro Aug 15, 2018 Read time: ( words)
Save to Folio
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
The first of these zero day vulnerabilities is CVE-2018-8373 , a use-after-free (UAF) vulnerability in VBscript engine that Trend Micro researchers found in Internet Explorer. This vulnerability bears many similarities to CVE-2018-8174 , another VBscript engine vulnerability that was patched back in May . Successful exploitation of this vulnerability could al
Trendmicro
August Patch Tuesday: A Tale of Two Zero-Days
blogs_trendmicro·2018-08-15·CVSS 7.5
CVE-2018-8373 [HIGH] August Patch Tuesday: A Tale of Two Zero-Days
Exploits & Vulnerabilities
## August Patch Tuesday: A Tale of Two Zero-Days
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
By: Trend Micro 2018/08/15 Read time: ( words)
Save to Folio
This month’s Microsoft Patch Tuesday includes important updates that patch two zero-day vulnerabilities that are already being actively exploited.
The first of these zero day vulnerabilities is CVE-2018-8373 , a use-after-free (UAF) vulnerability in VBscript engine that Trend Micro researchers found in Internet Explorer. This vulnerability bears many similarities to CVE-2018-8174 , another VBscript engine vulnerability that was patched back in May . Successful exploitation of this vulnerability could allo
Talos
Microsoft Tuesday August 2018
blogs_talos·2018-08-14·CVSS 9.8
[CRITICAL] Microsoft Tuesday August 2018
## Microsoft Tuesday August 2018
Microsoft released its monthly set of security advisories today for vulnerabilities that have been identified and addressed in various products. This month's advisory release addresses 62 new vulnerabilities, 20 of which are rated “critical,” 38 that are rated “important,” one that is rated moderate and one that is rated as low severity. These vulnerabilities impact Windows Operating System, Edge and Internet Explorer, along with several other products.
In addition to the 60 vulnerabilities referenced above, Microsoft has also released a critical update advisory, ADV180020 which addresses the vulnerabilities described in the Adobe Flash Security Bulletin APSB18-25.
## Critical Vulnerabilities
This month, Microsoft is addressing 20 vulnerabilities that a
Talos
Microsoft Tuesday August 2018
blogs_talos·2018-08-14·CVSS 9.8
[CRITICAL] Microsoft Tuesday August 2018
Microsoft released its monthly set of security advisories today for vulnerabilities that have been identified and addressed in various products. This month's advisory release addresses 62 new vulnerabilities, 20 of which are rated “critical,” 38 that are rated “important,” one that is rated moderate and one that is rated as low severity. These vulnerabilities impact Windows Operating System, Edge and Internet Explorer, along with several other products.
In addition to the 60 vulnerabilities referenced above, Microsoft has also released a critical update advisory, ADV180020 which addresses the vulnerabilities described in the Adobe Flash Security Bulletin APSB18-25.
### Critical Vulnerabilities
This month, Microsoft is addressing 20 vulnerabilities that are rated "critical." Talos believ
Zscaler
Zscaler protects against 10 new vulnerabilities for Internet Explorer, Microsoft Windows, Microsoft Edge & ChakraCore. | Zscaler
blogs_zscaler·CVSS 7.5
[HIGH] Zscaler protects against 10 new vulnerabilities for Internet Explorer, Microsoft Windows, Microsoft Edge & ChakraCore. | Zscaler
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http://www.securityfocus.com/bid/104977http://www.securitytracker.com/id/1041457https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8266http://www.securityfocus.com/bid/104977http://www.securitytracker.com/id/1041457https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8266
2018-08-15
Published