Multiple RCE vulnerabilities in Microsoft Windows XP 2003



Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2017-8461
CVE-2017-8487
CWE-ID CWE-119
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerability #2 is being exploited in the wild.
Vulnerable software
Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU7120

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2017-8461

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error in RPC implementation, when Routing and Remote Access service is enabled in Windows XP and Windows 2003. A remote unauthenticated attacker can send a specially crafted RPC request to vulnerable system and execute arbitrary code with SYSTEM privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note: this vulnerability is being exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: XP

Windows Server: 2003

CPE2.3 External links

https://support.microsoft.com/en-us/help/4024323/security-update-of-windows-xp-and-windows-server-20...
https://technet.microsoft.com/en-us/library/security/4025685.aspx


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?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.

2) Buffer overflow

EUVDB-ID: #VU7121

Risk: High

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:Amber]

CVE-ID: CVE-2017-8487

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error in Microsoft Windows OLE implementation in olecnv32.dll in Microsoft Windows XP and 2003. A remote unauthenticated attacker can create a specially crafted file or program, trick the victim into opening it and execute arbitrary code on the target system with privileges of the current user. 

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note: this vulnerability is being exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2003

Windows: XP

CPE2.3 External links

https://support.microsoft.com/en-us/help/4025218/security-update-for-windows-xp-and-windows-server-2...
https://technet.microsoft.com/en-us/library/security/4025685.aspx


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?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



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