⚠ Actively exploited
Added to CISA KEV on 2022-03-28. Federal agencies required to patch by 2022-04-18. Required action: Apply updates per vendor instructions..

CVE-2013-3660 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Microsoft Windows Server 2008

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer14 documents10 sources
Severity
7.8HIGHNVD
EPSS
69.2%
top 1.35%
CISA KEV
KEV
Added 2022-03-28
Due 2022-04-18
Exploit
Exploited in wild
Active exploitation observed
Affected products
1
Microsoft Windows Server 2008
Timeline
PublishedMay 24
KEV addedMar 28
KEV dueApr 18
Latest updateMay 14
CISA Required Action: Apply updates per vendor instructions.

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 ma…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages1 packages

Patches

Patch: docs.microsoft.com ↗Patch: docs.microsoft.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-f2wh-c6mm-3vrx: The EPATHOBJ::pprFlattenRec function in win32k↗2022-05-14
▶
VulnCheck
Microsoft Win32k Privilege Escalation Vulnerability↗2013
▶

💥Exploits & PoCs

4
Exploit-DB
Microsoft Windows - 'EPATHOBJ::pprFlattenRec' Local Privilege Escalation (Metasploit)↗2013-07-02
▶
Exploit-DB
Microsoft Windows NT/2000/2003/2008/XP/Vista/7/8 - 'EPATHOBJ' Local Ring↗2013-06-03
▶
Exploit-DB
Microsoft Windows - Win32k!EPATHOBJ::pprFlattenRec Uninitialized Next Pointer Testcase↗2013-05-21
▶
Metasploit
Windows EPATHOBJ::pprFlattenRec Local Privilege Escalation↗
▶

📋Vendor Advisories

1
CISA
Microsoft Win32k Privilege Escalation Vulnerability↗2022-03-28
▶

🕵️Threat Intelligence

5
Talos
Ransomware on Steroids: Cryptowall 2.0↗2015-01-06
▶
Talos
Ransomware on Steroids: Cryptowall 2.0↗2015-01-06
▶
Krebs
Adobe, Microsoft Release Critical Updates↗2013-07-09
▶
Krebs
Adobe, Microsoft Release Critical Updates – Krebs on Security↗2013-07-01
▶
Threat Intel
FIN6 (FIN6, Magecart Group 6, ITG08)
▶

📄Research Papers

1
arXiv
Technical Aspects of Cyber Kill Chain↗2016-06-10
▶