Remote code execution in Chinagames IGame ActiveX control

1) Stack-based buffer overflow

EUVDB-ID: #VU2744

Risk: Critical

CVSSv4.0: 8.4 [CVSS:4.0/AV:L/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-2009-1800

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: Yes

Description

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

The weakness exists due to stack-based buffer overflow in CGAgent ActiveX control (CGAgent.dll). A remote attacker can create a specially crafted Web page that passes an overly long string to the CreateChinagames() method, trick the victim into visiting it, trigger memory corruption and execute arbitrary code on the system 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.

Mitigation

Update to version 2009.2.2.2 or later:
http://www.chinagames.net/

Vulnerable software versions

Igame: 2009

CPE2.3

• cpe:2.3:a:chinagames:igame:2009:*:*:*:*:*:*:*

External links

https://www.chinagames.net/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted file.

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.