#VU44238 Format string error in Advantech WebAccess - CVE-2012-0242

Vulnerability identifier: #VU44238

Vulnerability risk: High

CVSSv4.0: 8.9 [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:P/U:Amber]

CVE-ID: CVE-2012-0242

CWE-ID: CWE-134

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Advantech WebAccess
Server applications / SCADA systems

Vendor: Advantech Co., Ltd

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Format string vulnerability in Advantech/BroadWin WebAccess before 7.0 allows remote attackers to execute arbitrary code via format string specifiers in a message string.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Advantech WebAccess: 5.0

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External links
https://www.securityfocus.com/bid/52051
https://www.us-cert.gov/control_systems/pdf/ICSA-12-047-01.pdf

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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, proof of concept for this vulnerability is available.