Vulnerabilities in Kernel-Mode Driver Could Allow Remote Code Execution
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2014-4113 CVE-2014-4148 |
| CWE-ID | CWE-119 CWE-20 |
| Exploitation vector | Network |
| Public exploit |
Vulnerability #1 is being exploited in the wild. Vulnerability #2 is being exploited in the wild. |
| Vulnerable software |
Windows Server Operating systems & Components / Operating system Windows Operating systems & Components / Operating system |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Privilege escalation
EUVDB-ID: #VU4865
Risk: Medium
CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green]
CVE-ID: CVE-2014-4113
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker to obtain elevated privileges on the target system.
The weakness exists due to improper handling of objects in memory by kernel-mode driver (win32k.sys). A local attacker can run a specially crafted application to gain elevated privileges and take complete control of the system.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.
Note: the vulnerability was being actively exploited.
Install updates from Microsoft website.
Vulnerable software versionsWindows Server: 2003 - 2012
Windows: RT - 8.1
CPE2.3- cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:RT:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:Vista:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:8.1:*:*:*:*:*:*:*
https://technet.microsoft.com/en-us/library/security/ms14-058
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
2) Improper input validation
EUVDB-ID: #VU4867
Risk: Critical
CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]
CVE-ID: CVE-2014-4148
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to improper input validation when processing TrueType fonts in kernel-mode driver (win32k.sys). A remote attacker can create a specially crafted font file, place it on a web page, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.
Note: the vulnerability was being actively exploited.
Install updates from Microsoft website.
Vulnerable software versionsWindows Server: 2003 - 2012
Windows: RT - 8.1
CPE2.3https://technet.microsoft.com/en-us/library/security/ms14-058
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
