CVE-2017-7269 Microsoft Windows Server Buffer Overflow

Exploited in the wild Critical 9.8 Published Updated

Remote attackers can execute arbitrary code on Windows Server 2003 via a buffer overflow in the IIS WebDAV service.

Exploited in the wild
Since 3 Nov 2021
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-7269?

CVE-2017-7269 is a critical memory corruption vulnerability in Microsoft Internet Information Services, published on 27 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet Information Services (IIS) 6.0 in Microsoft Windows Server 2003 R2 allows remote attackers to execute arbitrary code via a long header beginning with "If: <http://" in a PROPFIND request, as exploited in the wild in July or August 2016.

Weakness: CWE-120

Which versions are affected by CVE-2017-7269?

It affects 1 product.

Products include Microsoft Internet Information Services.

How do I fix CVE-2017-7269?

No fix has been published for CVE-2017-7269 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-7269 being exploited?

Yes. Attackers have exploited CVE-2017-7269 in the wild since at least 3 Nov 2021.

Public exploit code: 1 Metasploit module, 2 Exploit-DB entries, 1 Nuclei template and 19 proofs of concept on GitHub.

All Microsoft Internet Information Services vulnerabilities

Sources

Also known as GHSA-fj79-76j8-9vjm.

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