#VU13594 Improper input validation in Microsoft Forefront Unified Access Gateway


Published: 2018-07-03 | Updated: 2018-07-06

Vulnerability identifier: #VU13594

Vulnerability risk: Low

CVSSv3.1: 6.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2018-12571

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Forefront Unified Access Gateway
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to modify system information on the target system.

The vulnerability exists due to an error when processing malicious input. A remote attacker can submit a specially crafted 'orig_url' parameter value that includes a comma-separated list of URLs and cause the target server to initiate DNS queries for the hosts specified in the URLs.

Mitigation
The vendor does not plan to issue a fix as part of a security update.

Vulnerable software versions

Microsoft Forefront Unified Access Gateway: 2010


External links
http://seclists.org/fulldisclosure/2018/Jul/7


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.


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