CVE-2018-8298
published 2018-07-11CVE-2018-8298: A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption…
PriorityP184high7.5CVSS 3.1
AVNACHPRNUIRSUCHIHAH
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2022-03-17
Exploited in the wild
EPSS
75.34%
99.5th percentile
A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | chakracore | < 1.10.1 | 1.10.1 |
| microsoft | chakracore | — | — |
| microsoft | internet_explorer | — | — |
| microsoft | internet_explorer | — | — |
| microsoft | internet_explorer | — | — |
| msrc | chakracore | — | — |
Detection & IOCsextracted from sources · hover to see the quote
commandlet object = {};
Intl.NumberFormat.apply(object);
Intl.DateTimeFormat.apply(object);
Intl.DateTimeFormat.prototype.formatToParts.apply(object);↗
- →Look for JavaScript calling both Intl.NumberFormat.apply() and Intl.DateTimeFormat.apply() on the same object, followed by Intl.DateTimeFormat.prototype.formatToParts.apply() — this is the exact PoC trigger sequence for the type confusion. ↗
- →Vulnerability is triggered specifically in the ICU code path of Intl.js (not WinGlob). Target environments are Microsoft Edge using ICU — specifically tested on Microsoft Edge 42.17672.1000.0 and Microsoft EdgeHTML 17.17672. ↗
- →The root cause is in ChakraCore Intl.js ICU initializer (InitializeNumberFormat / InitializeDateTimeFormat) which lacks a re-initialization guard, allowing the same object to be initialized multiple times and causing type confusion. ↗
- ·The vulnerability only affects ChakraCore builds using the ICU internationalization backend, not the WinGlob backend. Ensure detection logic targets ICU-enabled Edge/ChakraCore versions. ↗
- ·The fix is delivered as a commit in ChakraCore v1.10.1. Verify patched version is applied before deprioritizing detections. ↗
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/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
vulncheck7.5HIGH
cisa7.5HIGH
vendor_msrc4.2MEDIUM
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OSV
ChakraCore RCE Vulnerability
osv·2022-05-13·CVSS 7.5
CVE-2018-8283 [HIGH] ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.
GHSA
GHSA-x986-878p-w4xx: A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engin
ghsa_unreviewed·2022-05-13·CVSS 7.5
CVE-2018-8296 [HIGH] CWE-787 GHSA-x986-878p-w4xx: A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engin
A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 11. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8298.
GHSA
ChakraCore RCE Vulnerability
ghsa·2022-05-13·CVSS 7.5
CVE-2018-8283 [HIGH] CWE-787 ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.
OSV
ChakraCore RCE Vulnerability
osv·2022-05-13·CVSS 7.5
CVE-2018-8287 [HIGH] ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge, Internet Explorer 10. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.
OSV
ChakraCore RCE Vulnerability
osv·2022-05-13·CVSS 7.5
CVE-2018-8288 [HIGH] ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.
GHSA
ChakraCore RCE Vulnerability
ghsa·2022-05-13·CVSS 7.5
CVE-2018-8298 [HIGH] CWE-843 ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.
OSV
ChakraCore RCE Vulnerability
osv·2022-05-13·CVSS 7.5
CVE-2018-8298 [HIGH] ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.
GHSA
ChakraCore RCE Vulnerability
ghsa·2022-05-13·CVSS 7.5
CVE-2018-8287 [HIGH] CWE-787 ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge, Internet Explorer 10. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.
OSV
ChakraCore RCE Vulnerability
osv·2022-05-13·CVSS 7.5
CVE-2018-8291 [HIGH] ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8296, CVE-2018-8298.
GHSA
ChakraCore RCE Vulnerability
ghsa·2022-05-13·CVSS 7.5
CVE-2018-8288 [HIGH] CWE-787 ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.
GHSA
GHSA-5cch-h5rg-64fx: A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engin
ghsa_unreviewed·2022-05-13·CVSS 7.5
CVE-2018-8242 [HIGH] CWE-787 GHSA-5cch-h5rg-64fx: A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engin
A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.
GHSA
ChakraCore RCE Vulnerability
ghsa·2022-05-13·CVSS 7.5
CVE-2018-8291 [HIGH] CWE-843 ChakraCore RCE Vulnerability
ChakraCore RCE Vulnerability
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8296, CVE-2018-8298.
VulnCheck
ChakraCore Scripting Engine Type Confusion Vulnerability
vulncheck·2018·CVSS 7.5
CVE-2018-8298 [HIGH] CWE-843 ChakraCore Scripting Engine Type Confusion Vulnerability
ChakraCore Scripting Engine Type Confusion Vulnerability
The ChakraCore scripting engine contains a type confusion vulnerability which can allow for remote code execution.
Affected: ChakraCore ChakraCore scripting engine
Required Action: Apply updates per vendor instructions.
Exploitation References: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
Remediation Due: 2022-03-17
CISA
ChakraCore Scripting Engine Type Confusion Vulnerability
cisa·2022-03-03·CVSS 7.5
CVE-2018-8298 [HIGH] CWE-843 ChakraCore Scripting Engine Type Confusion Vulnerability
Vulnerability: ChakraCore Scripting Engine Type Confusion Vulnerability
Affected: ChakraCore ChakraCore scripting engine
The ChakraCore scripting engine contains a type confusion vulnerability which can allow for remote code execution.
Required Action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2018-8298
Remediation Due Date: 2022-03-17
Microsoft
Scripting Engine Memory Corruption Vulnerability
vendor_msrc·2018-07-10·CVSS 4.2
CVE-2018-8298 [HIGH] Scripting Engine Memory Corruption Vulnerability
Scripting Engine Memory Corruption Vulnerability
Description: A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory. 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.
The security update addresses the vulnerability by modifying how the ChakraCore scripting
No detection rules found.
Trendmicro
July Patch Tuesday: Large Adobe Security Update
blogs_trendmicro·2018-07-11·CVSS 5.3
CVE-2018-8280 [MEDIUM] July Patch Tuesday: Large Adobe Security Update
Exploits & Vulnerabilities
## July Patch Tuesday: Large Adobe Security Update
Patch Tuesday for July addresses 53 Microsoft and 107 Adobe vulnerabilities.
By: Trend Micro 2018/07/11 Read time: ( words)
Save to Folio
July’s Patch Tuesday addresses 53 vulnerabilities, including 18 critical ones, most of which involve Microsoft’s browsers. These include CVE-2018-8280 , CVE-2018-8286 , CVE-2018-8290 , CVE-2018-8294 , and CVE-2018-8298 , all of which are corruption bugs in the Chakra Javascript Engine that exist in the way it handles objects in memory in Microsoft Edge. An attacker could then use a specially crafted website that could potentially provide administrative rights to the perpetrator.
CVE-2018-8304 , a Windows DNSAPI Denial of Service Vulnerability, is another noteworthy vulner
Trendmicro
July Patch Tuesday: Large Adobe Security Update
blogs_trendmicro·2018-07-11·CVSS 5.3
CVE-2018-8280 [MEDIUM] July Patch Tuesday: Large Adobe Security Update
Exploits y vulnerabilidades
## July Patch Tuesday: Large Adobe Security Update
Patch Tuesday for July addresses 53 Microsoft and 107 Adobe vulnerabilities.
By: Trend Micro Jul 11, 2018 Read time: ( words)
Save to Folio
July’s Patch Tuesday addresses 53 vulnerabilities, including 18 critical ones, most of which involve Microsoft’s browsers. These include CVE-2018-8280 , CVE-2018-8286 , CVE-2018-8290 , CVE-2018-8294 , and CVE-2018-8298 , all of which are corruption bugs in the Chakra Javascript Engine that exist in the way it handles objects in memory in Microsoft Edge. An attacker could then use a specially crafted website that could potentially provide administrative rights to the perpetrator.
CVE-2018-8304 , a Windows DNSAPI Denial of Service Vulnerability, is another noteworthy vul
Trendmicro
July Patch Tuesday: Large Adobe Security Update
blogs_trendmicro·2018-07-11·CVSS 5.3
CVE-2018-8280 [MEDIUM] July Patch Tuesday: Large Adobe Security Update
Exploits & Vulnerabilities
## July Patch Tuesday: Large Adobe Security Update
Patch Tuesday for July addresses 53 Microsoft and 107 Adobe vulnerabilities.
By: Trend Micro Jul 11, 2018 Read time: ( words)
Save to Folio
July’s Patch Tuesday addresses 53 vulnerabilities, including 18 critical ones, most of which involve Microsoft’s browsers. These include CVE-2018-8280 , CVE-2018-8286 , CVE-2018-8290 , CVE-2018-8294 , and CVE-2018-8298 , all of which are corruption bugs in the Chakra Javascript Engine that exist in the way it handles objects in memory in Microsoft Edge. An attacker could then use a specially crafted website that could potentially provide administrative rights to the perpetrator.
CVE-2018-8304 , a Windows DNSAPI Denial of Service Vulnerability, is another noteworthy vuln
Trendmicro
July Patch Tuesday: Large Adobe Security Update
blogs_trendmicro·2018-07-11·CVSS 5.3
CVE-2018-8280 [MEDIUM] July Patch Tuesday: Large Adobe Security Update
Ausnutzung von Schwachstellen
## July Patch Tuesday: Large Adobe Security Update
Patch Tuesday for July addresses 53 Microsoft and 107 Adobe vulnerabilities.
By: Trend Micro Jul 11, 2018 Read time: ( words)
Save to Folio
July’s Patch Tuesday addresses 53 vulnerabilities, including 18 critical ones, most of which involve Microsoft’s browsers. These include CVE-2018-8280 , CVE-2018-8286 , CVE-2018-8290 , CVE-2018-8294 , and CVE-2018-8298 , all of which are corruption bugs in the Chakra Javascript Engine that exist in the way it handles objects in memory in Microsoft Edge. An attacker could then use a specially crafted website that could potentially provide administrative rights to the perpetrator.
CVE-2018-8304 , a Windows DNSAPI Denial of Service Vulnerability, is another noteworthy v
Trendmicro
July Patch Tuesday: Large Adobe Security Update
blogs_trendmicro·2018-07-11·CVSS 5.3
CVE-2018-8280 [MEDIUM] July Patch Tuesday: Large Adobe Security Update
Exploits & Vulnerabilities
# July Patch Tuesday: Large Adobe Security Update
Patch Tuesday for July addresses 53 Microsoft and 107 Adobe vulnerabilities.
By: Trend Micro
2018/07/11
Read time: ( words)
Save to Folio
July’s Patch Tuesday addresses 53 vulnerabilities, including 18 critical ones, most of which involve Microsoft’s browsers. These include CVE-2018-8280, CVE-2018-8286, CVE-2018-8290, CVE-2018-8294, and CVE-2018-8298, all of which are corruption bugs in the Chakra Javascript Engine that exist in the way it handles objects in memory in Microsoft Edge. An attacker could then use a specially crafted website that could potentially provide administrative rights to the perpetrator.
CVE-2018-8304, a Windows DNSAPI Denial of Service Vulnerability, is another noteworthy vulnerabilit
Talos
Microsoft Patch Tuesday - July 2018
blogs_talos·2018-07-10·CVSS 7.5
[HIGH] Microsoft Patch Tuesday - July 2018
Microsoft released its monthly set of security advisories today for vulnerabilities that have been identified and addressed in various products. This month's release addresses 53 new vulnerabilities, 17 of which are rated critical, 34 are rated important, one is rated moderate, and one is rated as low severity. These vulnerabilities impact Windows Operating System, Edge, Internet Explorer and more.
In addition to the 53 vulnerabilities referenced above, Microsoft has also released a critical update advisory, ADV180017, which addresses the vulnerabilities described in the Adobe security bulletin APSB18-24.
## Critical vulnerabilitiesThis month, Microsoft is addressing 17 vulnerabilities that are rated as critical:
CVE-2018-8242 - Scripting Engine Memory Corruption Vulnerability
CVE-2018-
Talos
Microsoft Patch Tuesday - July 2018
blogs_talos·2018-07-10·CVSS 7.5
[HIGH] Microsoft Patch Tuesday - July 2018
## Microsoft Patch Tuesday - July 2018
Microsoft released its monthly set of security advisories today for vulnerabilities that have been identified and addressed in various products. This month's release addresses 53 new vulnerabilities, 17 of which are rated critical, 34 are rated important, one is rated moderate, and one is rated as low severity. These vulnerabilities impact Windows Operating System, Edge, Internet Explorer and more.
In addition to the 53 vulnerabilities referenced above, Microsoft has also released a critical update advisory, ADV180017 , which addresses the vulnerabilities described in the Adobe security bulletin APSB18-24 .
## Critical vulnerabilities This month, Microsoft is addressing 17 vulnerabilities that are rated as critical:
CVE-2018-8242 - Scripting Engin
Zscaler
Zscaler protects against 13 new vulnerabilities for Scripting Engine & Microsoft Edge. | Zscaler
blogs_zscaler·CVSS 7.5
[HIGH] Zscaler protects against 13 new vulnerabilities for Scripting Engine & Microsoft Edge. | Zscaler
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http://www.securityfocus.com/bid/104639https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298https://www.exploit-db.com/exploits/45217/http://www.securityfocus.com/bid/104639https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298https://www.exploit-db.com/exploits/45217/https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8298
2018-07-11
Published
2022-03-03
Added to CISA KEV
Exploited in the wild