Critical

Memory Corruption in Adobe Flash Player and Adobe AIR

IdentifiersCVE-2015-3133CWE-119· Improper Restriction of Operations…

CVE-2015-3133 is a memory corruption vulnerability affecting Adobe Flash Player before 13.0.0.302 and 14.x through 18.x before 18.0.0.203 on Windows and OS X, Flash Player before 11.2.202.481 on Linux, Adobe AIR before 18.0.0.180, Adobe AIR SDK before 18.0.0.180, and Adobe AIR SDK & Compiler before 18.0.0.180. The flaw can be triggered through unspecified vectors and may allow an attacker to execute arbitrary code or cause a denial of service. Available reporting identifies it as distinct from CVE-2015-3117, CVE-2015-3123, CVE-2015-3130, CVE-2015-3134, and CVE-2015-4431. The vulnerable condition is described only at the level of memory corruption; specific vulnerable functions or parsing components are not available in the provided information.

For your environment

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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 can result in arbitrary code execution in the context of the affected Flash Player or Adobe AIR process, enabling compromise of the target system at the privileges of the current user. Where code execution is not achieved, exploitation may still crash the application and cause a denial of service. Reporting also indicates the vulnerability was used in exploit-kit-driven malware delivery chains, demonstrating practical use for drive-by compromise.

Mitigation

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

Until patching is completed, reduce exposure by disabling or uninstalling Adobe Flash Player where operationally feasible, restricting execution of Flash content in browsers, and using click-to-play or equivalent controls. Limit exposure to untrusted web content and malvertising paths, since observed exploitation occurred through compromised websites and malicious advertisements delivered via an exploit kit. Application isolation and least-privilege user contexts can reduce post-exploitation impact.

Remediation

Patch, then assume compromise.

Upgrade Adobe Flash Player to 18.0.0.203 or later on Windows and OS X, or to 11.2.202.481 or later on Linux. Upgrade Adobe AIR, Adobe AIR SDK, and Adobe AIR SDK & Compiler to 18.0.0.180 or later. Any unsupported or legacy Flash and AIR deployments should be removed or replaced where possible.

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

AdobeAirapplication

AdobeAir Sdkapplication

AdobeAir Sdk & Compilerapplication

AdobeFlash Playerapplication

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

ACTIVITY FEED

Recent activity

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

2 SOURCESView more in app

palo alto networks unit 42 blogNews

May 9, 2016

KRBanker Targets South Korea Through Adware and Exploit Kits

An Adobe Flash vulnerability exploited by the KaiXin exploit kit to deliver the KRBanker banking trojan in campaigns targeting users in the Republic of Korea.

paloalto researchcenter historicNews

May 9, 2016

KRBanker Targets South Korea Through Adware and Exploit Kits

An Adobe Flash vulnerability exploited by the KaiXin exploit kit to deliver KRBanker.

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 evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware4

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

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