#VU6304 Heap-based buffer overflow in VMware Horizon and VMWare Unified Access Gateway - CVE-2017-4907

Vulnerability identifier: #VU6304

Vulnerability risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2017-4907

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
VMware Horizon
Server applications / Virtualization software
VMWare Unified Access Gateway
Server applications / Remote access servers, VPN

Vendor: VMware, Inc

Description

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

The vulnerability exists due to a boundary error in VMware Unified Access Gateway and Horizon View. A remote attacker can trigger heap-based buffer overflow and execute arbitrary code on security gateway.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
The vulnerability is fixed in Unified Access Gateway (formerly Access Point) 2.8.1, Horizon View 7.1.0 and 6.2.4.

Vulnerable software versions

VMware Horizon: 6.2 - 6.2.3, 7.0 - 7.0.3

VMWare Unified Access Gateway: 2.8.0

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External links
https://www.vmware.com/security/advisories/VMSA-2017-0008.html

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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.