CVEs / CVE-2013-3660
CVE-2013-3660: Microsoft Win32k Privilege Escalation Vulnerability
- Known exploited in the CISA KEV catalog since 28 Mar 2022
- high 7.8 CVSS 3.1 (NVD)
- EPSS 39.3% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
The EPATHOBJ::pprFlattenRec function in win32k.sys in the kernel-mode drivers in Microsoft does not properly initialize a pointer for the next object in a certain list, which allows local users to gain privileges.
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."
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
Exploitation
| In CISA KEV since | 28 Mar 2022 |
|---|---|
| Due date for US federal agencies | 18 Apr 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.8 highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-119 |
References
- CVE-2013-3660 on NVD
- CVE-2013-3660 in the CISA KEV catalog
- http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0090.html Broken Link
- http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0094.html Broken Link
- http://archives.neohapsis.com/archives/fulldisclosure/2013-06/0006.html Broken Link
- http://secunia.com/advisories/53435 Broken Link, Vendor Advisory
- http://twitter.com/taviso/statuses/309157606247768064 Exploit
- http://twitter.com/taviso/statuses/335557286657400832 Not Applicable
- http://www.computerworld.com/s/article/9239477 Broken Link
- http://www.exploit-db.com/exploits/25611/ Exploit, Third Party Advisory, VDB Entry
- http://www.osvdb.org/93539 Broken Link
- http://www.reddit.com/r/netsec/comments/1eqh66/0day_windows_kernel_epathobj_vulnerability/ Exploit, Issue Tracking
- http://www.theverge.com/2013/5/23/4358400/google-engineer-bashes-microsoft-discloses-windows-flaw Press/Media Coverage
- http://www.us-cert.gov/ncas/alerts/TA13-190A Third Party Advisory, US Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-053 Patch, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17360 Broken Link
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3660 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.