Vulnerability identifier: #VU12590

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2015-8277

CWE-ID: N/A

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
FactoryTalk Activation Manager
Server applications / Remote management servers, RDP, SSH

Vendor: Rockwell Automation

Description

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

The weakness exists in the custom string copying function of the license server manager due to improper bounds checking on incoming data. A remote attacker can send specially crafted packet with opcode (a) 0x107 or (b) 0x10a, trigger memory corruption and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 4.02.

Vulnerable software versions

FactoryTalk Activation Manager: 4.00 - 4.01

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External links
http://rockwellautomation.custhelp.com/app/answers/detail/a_id/1073133

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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.