CVE-2019-1089 Privilege escalation in Multiple

High 7.8 Published Updated

A low-privilege attacker can execute a crafted application to gain elevated privileges via improper RPC request handling in Windows.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-1089?

CVE-2019-1089 is a high-severity vulnerability in Microsoft Windows 10, published on 15 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An elevation of privilege vulnerability exists in rpcss.dll when the RPC service Activation Kernel improperly handles an RPC request. To exploit this vulnerability, a low level authenticated attacker could run a specially crafted application. The security update addresses this vulnerability by correcting how rpcss.dll handles these requests., aka 'Windows RPCSS Elevation of Privilege Vulnerability'.

Which versions are affected by CVE-2019-1089?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2019-1089?

No fix has been published for CVE-2019-1089 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-1089 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-1089 exists.

Public exploit code: 1 Exploit-DB entry.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-vvxh-m5f8-9r2g.

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