MediumPublic exploit

Kernel Pool Data Leak in secdrv.sys (SafeDisc)

IdentifiersCVE-2018-7250CWE-908

CVE-2018-7250 is a vulnerability in secdrv.sys, a driver used by Macrovision SafeDisc and shipped with Microsoft Windows Vista, 7, 8, and 8.1 (prior to KB3086255). The vulnerability is due to an uninitialized kernel pool allocation in the handler for IOCTL 0xCA002813, which allows a local unprivileged attacker to leak 16 bits of uninitialized kernel PagedPool memory.

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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.

A local attacker can exploit this vulnerability to obtain 16 bits of uninitialized kernel memory, potentially exposing sensitive information such as kernel pointers or other data that could facilitate further attacks (e.g., kernel ASLR bypass or privilege escalation). However, the leak is limited in size (16 bits per invocation).

Mitigation

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

Restrict local access to the system to trusted users only. Remove or disable the secdrv.sys driver if not required. Monitor for attempts to access the vulnerable IOCTL interface.

Remediation

Patch, then assume compromise.

Apply Microsoft update KB3086255, which disables the secdrv.sys driver and addresses the vulnerability. Alternatively, ensure that secdrv.sys is not present or loaded on the system.

PUBLIC EXPLOITS

Exploits

1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.

VALID 1 / 1 TOTALView more in app

SecDrvPoolLeakMaturityPoCVerified exploit

This repository contains a proof-of-concept (PoC) exploit for CVE-2018-7250, a local information disclosure vulnerability in the secdrv.sys driver as shipped with Microsoft Windows Vista, 7, 8, and 8.1 (prior to KB3086255), as well as Macrovision SafeDisc. The exploit leverages an uninitialized kernel pool allocation triggered by IOCTL 0xCA002813, allowing a local unprivileged attacker to leak 16 bits of uninitialized kernel PagedPool data to usermode. The repository is structured as a Visual Studio C++ project, with the main exploit logic likely implemented in SecDrvPoolLeak/SecDrvPoolLeak.cpp. No precompiled binaries are present; the project must be built and run on a vulnerable system. The README provides detailed context, including affected OS versions, test environment, and screenshots of the memory leak. The exploit is not weaponized and serves as a PoC for research and demonstration purposes.

alonhrDisclosed Feb 21, 2018cpplocal

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

Microsoft CorporationWindows 7operating_system

Microsoft CorporationWindows 8operating_system

Microsoft CorporationWindows 8.1operating_system

Microsoft CorporationWindows Vistaoperating_system

TivoSafediscapplication

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

ACTIVITY FEED

Recent activity

No public activity tracked yet. Mallory keeps watching.

0 SOURCESView more in app

No public activity observed for this vulnerability.

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 malware

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