CVE-2013-3660

Microsoft Win32k Privilege Escalation

7.8 HIGHActively exploited (CISA KEV)Public exploitEPSS 39.3%

Published24 May 2013
Added to CISA KEV28 Mar 2022
Remediation due18 Apr 2022

Description

The EPATHOBJ::pprFlattenRec function in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012 does not properly initialize a pointer for the next object in a certain list, which allows local users to obtain write access to the PATHRECORD chain, and consequently gain privileges, by triggering excessive consumption of paged memory and then making many FlattenPath function calls, aka "Win32k Read AV Vulnerability."

CVSS 3.1 breakdown

Attack vectorLocal

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 7all versions

Microsoft Windows 8all versions

Microsoft Windows Rtall versions

Microsoft Windows Server 2003all versions

Microsoft Windows Server 2008r2

Microsoft Windows Server 2012all versions

Microsoft Windows Vistaall versions

Microsoft Windows Xpall versions

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

References

http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0090.htmlBroken Link
http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0094.htmlBroken Link
http://archives.neohapsis.com/archives/fulldisclosure/2013-06/0006.htmlBroken Link
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-053PatchVendor Advisory
http://secunia.com/advisories/53435Broken LinkVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17360Broken Link
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3660US Government Resource
http://twitter.com/taviso/statuses/309157606247768064Exploit
http://twitter.com/taviso/statuses/335557286657400832Not Applicable
http://www.computerworld.com/s/article/9239477Broken Link

and 5 more references

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2013-3660 being actively exploited?

Yes. CVE-2013-3660 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 28 Mar 2022.

How severe is CVE-2013-3660?

CVE-2013-3660 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 39.3% probability of exploitation.

Which products are affected by CVE-2013-3660?

Affected products include Microsoft Windows 7, Microsoft Windows 8, Microsoft Windows Rt, Microsoft Windows Server 2003, Microsoft Windows Server 2008, and 3 more.

How do I fix CVE-2013-3660?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2013-3660 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.