Improper input validation in Microsoft Forefront Unified Access Gateway - CVE-2018-12571

 

Improper input validation in Microsoft Forefront Unified Access Gateway - CVE-2018-12571

Published: July 3, 2018 / Updated: July 6, 2018


Vulnerability identifier: #VU13594
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-12571
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Forefront Unified Access Gateway

Detailed vulnerability 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.


How to mitigate CVE-2018-12571

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

Sources