Intelligence online17 sources monitored8 actively exploited 7d26 published 24hChecked recently
Vulnerability record

CVE-2017-7269

Microsoft Windows Server Buffer Overflow Vulnerability

CriticalExploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Internet Information Services (IIS), fix it now.

CISA required action: Apply updates per vendor instructions.

US federal civilian agencies must remediate by May 3, 2022.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

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.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

ProductVendorAffected versionsSource
IISMicrosoft6.0NVD
Internet Information Services (IIS)Microsoft—KEV

Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2017-7269 scored CVSS 9.8: Microsoft Internet Information Services (IIS), Microsoft Windows Server Buffer Overflow Vulnerability

    CISA lists this as exploited in the wild. Unpatched Internet Information Services (IIS) systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2017-7269: Microsoft Internet Information Services (IIS), Microsoft Windows Server Buffer Overflow Vulnerability

    An official fix is now available for Microsoft Internet Information Services (IIS). This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2017-7269
  • securityfocus.com http://www.securityfocus.com/bid/97127
  • securitytracker.com http://www.securitytracker.com/id/1038168
  • 0patch.blogspot.com https://0patch.blogspot.com/2017/03/0patching-immortal-cve-2017-7269.html
  • github.com https://github.com/danigargu/explodingcan
  • github.com https://github.com/edwardz246003/IIS_exploit
  • github.com https://github.com/rapid7/metasploit-framework/pull/8162
  • medium.com https://medium.com/%40iraklis/number-of-internet-facing-vulnerable-iis-6-0-to-cve-2017-7269-8bd153ef5812
  • support.microsoft.com https://support.microsoft.com/en-us/help/3197835/description-of-the-security-update-for-windows-xp-and-windows…
  • exploit-db.com https://www.exploit-db.com/exploits/41738/
  • exploit-db.com https://www.exploit-db.com/exploits/41992/
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7269