CVE-2009-4445

Microsoft Internet Information Services (IIS), when used in conjunction with unspecified third-party upload applications, allows remote attackers to create empty files with arbitrary extensions via a filename containing an initial extension followed by a : (colon) and a safe extension, as demonstrated by an upload of a .asp:.jpg file that results in creation of an empty .asp file, related to support for the NTFS Alternate Data Streams (ADS) filename syntax. NOTE: it could be argued that this is a vulnerability in the third-party product, not IIS, because the third-party product should be applying its extension restrictions to the portion of the filename before the colon.

CVSS v2.0 6.0 MEDIUM

6.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:S/C:P/I:P/A:P

Exploitability : 6.8 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://soroush.secproject.com/downloadable/iis-semicolon-report.pdf	Third Party Advisory
http://securitytracker.com/id?1023387	Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/55308

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Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:internet_information_services:*:*:*:*:*:*:*:*

Information

Published : 2009-12-29 13:00

Updated : 2017-08-16 18:31

NVD link : CVE-2009-4445

Mitre link : CVE-2009-4445

JSON object : View

CWE

CWE-20

Improper Input Validation

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Products Affected

microsoft

internet_information_services

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