CVE-2018-0940 Privilege escalation in Microsoft Exchange Outlook Web Access (OWA)
An attacker can exploit link rewriting in Outlook Web Access to elevate privileges within Microsoft Exchange Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-0940?
CVE-2018-0940 is a medium-severity vulnerability in Microsoft Exchange Server, published on 14 Mar 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Microsoft Exchange Outlook Web Access (OWA) in Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 20, Microsoft Exchange Server 2013 Cumulative Update 18, Microsoft Exchange Server 2013 Cumulative Update 19, Microsoft Exchange Server 2013 Service Pack 1, Microsoft Exchange Server 2016 Cumulative Update 7, and Microsoft Exchange Server 2016 Cumulative Update 8 allows an elevation of privilege vulnerability due to how links in the body of an email message are rewritten, aka "Microsoft Exchange Elevation of Privilege Vulnerability".
Which versions are affected by CVE-2018-0940?
It affects 1 product.
Products include Microsoft Exchange Server.
How do I fix CVE-2018-0940?
No fix has been published for CVE-2018-0940 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-0940 being exploited?
There is no known exploitation of CVE-2018-0940 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Exchange Server
- CVE-2024-21410 Microsoft Exchange Server Privilege Escalation
- CVE-2021-34473 Microsoft Exchange Server Remote Code Execution
- CVE-2021-26855 Microsoft Exchange Server Remote Code Execution
- CVE-2021-34523 Microsoft Exchange Server Privilege Escalation
- CVE-2023-21529 Microsoft Exchange Server Deserialization of Untrusted Data
Sources
Also known as GHSA-272p-x79f-r2pc.