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HighCISA KEVExploited in the wildPublic exploit

Type Confusion RCE in Google Chrome V8

IdentifiersCVE-2017-5070CWE-843· Access of Resource Using…

CVE-2017-5070 is a type confusion vulnerability in the V8 JavaScript engine in Google Chrome. According to the provided content, affected versions are Chrome prior to 59.0.3071.86 on Linux, Windows, and macOS, and prior to 59.0.3071.92 on Android. A remote attacker could trigger the flaw via a crafted HTML page, causing type confusion in V8 and achieving arbitrary code execution within the Chrome sandbox. The content also notes this vulnerability was incorporated into the MOONSHINE exploit framework and used against Android Chromium-based targets by selecting exploits based on browser version.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows remote arbitrary code execution in the context of the Chrome renderer or equivalent sandboxed browser process. In practical terms, this enables compromise of the targeted browsing session and execution of attacker-controlled code inside the browser sandbox. In the observed threat activity described in the content, exploitation was used as part of a mobile intrusion chain to deliver additional malware components on Android.

Mitigation

If you can’t patch tonight, do this now.

Apply vendor patches promptly and reduce exposure to untrusted web content until updates are deployed. On mobile, restrict use of outdated Chromium-based embedded browsers and keep applications that bundle or depend on Chromium components updated. Enterprise controls that limit access to attacker-controlled links, isolate browser activity, and detect exploit-delivery pages can reduce risk, but patching is the primary mitigation.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome to version 59.0.3071.86 or later on Linux, Windows, and macOS, and to 59.0.3071.92 or later on Android. More generally, ensure all Chromium-based browsers and embedded Chromium components on affected platforms are updated to vendor-fixed builds, since exploit frameworks may target version-specific vulnerable browser engines.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
GoogleChromeapplication
Red HatEnterprise Linux Desktopoperating_system
Red HatEnterprise Linux Serveroperating_system
Red HatEnterprise Linux Workstationoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

3 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence3

Every observed campaign linking this CVE to a named adversary.

Associated malware5

Malware families riding this exploit, with evidence and IOCs.

Detection signatures1

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2017-5070
NVD
nvd.nist.gov/vuln/detail/CVE-2017-5070
MITRE CWE · CWE-843
Access of Resource Using Incompatible Type…
Vendor Advisory
chromereleases.googleblog.com/2017/06/stable-channel-update-for-desktop.html
Third Party Advisory
access.redhat.com/errata/RHSA-2017:1399
Third Party Advisory
security.gentoo.org/glsa/201706-20
Exploit
crbug.com/722756
US Government Resource
cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-5070