CVE-2013-3660
Microsoft Win32k: Privilege Escalation
As of , CVE-2013-3660 in Microsoft Win32k is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 28 March 2022
- US federal deadline
- 18 April 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.39Higher than 98% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.06 on 28 March 2022EPSS on the day CISA listed it.
- Public exploit
- 1 Metasploit module and 3 Exploit-DB entries (3 verified)
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
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.
CISA's 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."
The CVE record's description, from mitre
- CVE published
- 24 May 2013
- Assigned by
- mitre
- CVSS
- 7.8 High (CVSS 3.1, from CISA-ADP)
- CWE-119
- Improper Restriction of Operations within the Bounds of a Memory Buffer
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- Exploit-DB published an exploit (EDB-ID 25611).
- The CVE record was published.
- Exploit-DB published an exploit (EDB-ID 25912).
- Exploit-DB published an exploit (EDB-ID 26554).
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Public exploits
Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.
- Metasploit: Windows EPATHOBJ::pprFlattenRec Local Privilege Escalationexploit module, rank average
- Exploit-DB: Microsoft Windows - 'EPATHOBJ::pprFlattenRec' Local Privilege Escalation (Metasploit)EDB-ID 26554, verified by Exploit-DB, 2 July 2013
- Exploit-DB: Microsoft Windows NT/2000/2003/2008/XP/Vista/7/8 - 'EPATHOBJ' Local RingEDB-ID 25912, verified by Exploit-DB, 3 June 2013
- Exploit-DB: Microsoft Windows - Win32k!EPATHOBJ::pprFlattenRec Uninitialized Next Pointer TestcaseEDB-ID 25611, verified by Exploit-DB, 21 May 2013
Win32k: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2014-4113Privilege Escalation | Microsoft Win32k | Patch this weekMetasploit module; EPSS 0.87; verified Exploit-DB entry | 0.87 | ||
| CVE-2018-8120Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.73; verified Exploit-DB entry | 0.73 | ||
| CVE-2015-1701Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.56; verified Exploit-DB entry | 0.56 | ||
| CVE-2018-8453Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.70; verified Exploit-DB entry | 0.70 | ||
| CVE-2022-21882Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.59 | 0.59 | ||
| CVE-2019-1458Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.74 | 0.74 | ||
| CVE-2021-1732Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.78 | 0.78 | ||
| CVE-2019-0808Privilege Escalation | Microsoft Win32k | Patch this weekMetasploit module; EPSS 0.53 | 0.53 | ||
| CVE-2020-1054Privilege Escalation | Microsoft Win32k | Patch this weekMetasploit module; EPSS 0.54 | 0.54 | ||
| CVE-2016-7255Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; EPSS 0.81 | 0.81 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org