Open redirect in Microsoft Exchange Server - CVE-2017-8621

 

Open redirect in Microsoft Exchange Server - CVE-2017-8621

Published: July 11, 2017 / Updated: July 11, 2017


Vulnerability identifier: #VU7454
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-8621
CWE-ID: CWE-601
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to redirect website visitors to external websites.

The weakness exists due to incorrect handling of open redirect requests by Microsoft Exchange. A remote attacker can create a specially crafted link, redirect the victim on potentially dangerous website and gain access to potentially sensitive information.

Successful exploitation of the vulnerability may result in information disclosure.

Affected software

Microsoft Exchange Server

How to mitigate CVE-2017-8621

Install updates from vendor's website.


External References

Related Security Bulletins