CVE-2017-11870
HighPublic exploitChakra Core vulnerable to privilege escalation when writing to JavaScript null scope objects
Published May 17, 2022 · Updated Sep 17, 2024 · Also known as GHSA-9f2p-wm46-6m5f
Key Facts
Patch immediately- CVE-2017-11870 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Chakracore (Microsoft), Edge (Microsoft), Microsoft.ChakraCore (nuget) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 60% probability of exploitation in the next 30 days.
- Fixed versions are available, including Microsoft.ChakraCore 1.7.4.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.5
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
60%
Higher than 99.1% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-11870 brief as a PDF
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Description
ChakraCore and Microsoft Edge in Windows 10 1703, 1709, and Windows Server, version 1709 allows an attacker to gain the same user rights as the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11836, CVE-2017-11837, CVE-2017-11838, CVE-2017-11839, CVE-2017-11840, CVE-2017-11841, CVE-2017-11843, CVE-2017-11846, CVE-2017-11858, CVE-2017-11859, CVE-2017-11861, CVE-2017-11862, CVE-2017-11866, CVE-2017-11869, CVE-2017-11871, and CVE-2017-11873.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ChakracoreMicrosoft | See advisory | n/a |
| EdgeMicrosoft | See advisory | n/a |
| Microsoft.ChakraCorenuget | See advisory | 1.7.4 |
| ChakraCore, Microsoft Edge | >= Windows 10 1703, 1709, and Windows Server, version 1709. | n/a |
Patched Releases
Microsoft.ChakraCore
1.7.4
Timeline
Publicly disclosed
May 17, 2022
Last updated
Sep 17, 2024
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisoryGHSA advisory
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2017-11870
- advisory43182
- advisory101731
- advisory1039780
FAQ
Common Questions.
ChakraCore and Microsoft Edge in Windows 10 1703, 1709, and Windows Server, version 1709 allows an attacker to gain the same user rights as the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability".
Affected: Chakracore (Microsoft); Edge (Microsoft); Microsoft.ChakraCore (nuget), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Microsoft.ChakraCore 1.7.4.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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