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MediumCISA KEVExploited in the wildPublic exploit

Java Deployment click-to-play bypass in Oracle Java SE

IdentifiersCVE-2015-4902CWE-693

CVE-2015-4902 is an unspecified vulnerability in the Deployment component of Oracle Java SE 6u101, 7u85, and 8u60. Oracle states that it allows remote attackers to affect integrity via unknown vectors. The provided context further characterizes the issue as a Java "click-to-play bypass" and notes its use by APT28/Sednit as a defense-evasion mechanism and as a Java 0-day in Sedkit operations. Based on the available information, the flaw appears to permit bypass of a Java security control in the deployment/browser-launch path, but the precise vulnerable function, root cause, and exploit mechanics are not provided in the source material.

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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 a remote attacker to bypass a Java security feature associated with Deployment/click-to-play behavior and affect integrity. In practical terms, this can reduce or remove a user-facing protection barrier intended to prevent or gate active content execution, enabling follow-on malicious Java content execution or delivery with less user friction. The exact downstream impact beyond integrity effects is not specified in the provided material.

Mitigation

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

If immediate patching is not possible, reduce exposure by disabling or removing the Java browser plugin and Java Deployment functionality where not strictly required, enforcing browser controls that block Java content, and restricting execution of untrusted web content. Enterprise controls that prevent or tightly govern Java applet execution and browser plugin use would also reduce exploitability. Monitoring for suspicious Java-driven web activity and exploit-kit delivery chains may provide additional detection value, but the specific exploit indicators for this CVE are not available in the provided content.

Remediation

Patch, then assume compromise.

Apply Oracle's security updates that address CVE-2015-4902 by upgrading from affected releases Oracle Java SE 6u101, 7u85, and 8u60 to a fixed version provided by Oracle. Because the flaw was used as a 0-day in the wild, priority should be given to patching systems where browser-based Java deployment was enabled.
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
OpensuseLeapoperating_system
OpensuseOpensuseoperating_system
OracleJdkapplication
OracleJreapplication
Red HatEnterprise Linux Desktopoperating_system
Red HatEnterprise Linux Eusoperating_system
Red HatEnterprise Linux Eus Compute Nodeoperating_system
Red HatEnterprise Linux For Ibm Z Systemsoperating_system
Red HatEnterprise Linux For Ibm Z Systems Eusoperating_system
Red HatEnterprise Linux For Power Big Endianoperating_system
Red HatEnterprise Linux For Power Big Endian Eusoperating_system
Red HatEnterprise Linux For Power Little Endianoperating_system
Red HatEnterprise Linux For Power Little Endian Eusoperating_system
Red HatEnterprise Linux For Scientific Computingoperating_system
Red HatEnterprise Linux Serveroperating_system
Red HatEnterprise Linux Server From Rhuioperating_system
Red HatEnterprise Linux Workstationoperating_system
Red HatSatelliteapplication
SuseLinux Enterprise Module For Legacyapplication
SuseLinux Enterprise Serveroperating_system
SuseLinux Enterprise Software Development Kitoperating_system

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

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.
Exposure mapping

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Threat actor evidence4

Every observed campaign linking this CVE to a named adversary.

Associated malware2

Malware families riding this exploit, with evidence and IOCs.

Detection signatures2

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.