What is the severity of CVE-2011-5279?

CVE-2011-5279 has a medium severity rating due to its potential to allow remote attackers to modify environment variables.

How do I fix CVE-2011-5279?

To fix CVE-2011-5279, it is recommended to upgrade to a newer version of Microsoft Internet Information Services that does not have this vulnerability.

Which versions of IIS are affected by CVE-2011-5279?

CVE-2011-5279 affects Microsoft Internet Information Services versions 4.x and 5.x.

What type of attack is associated with CVE-2011-5279?

CVE-2011-5279 is associated with CRLF injection attacks where newline characters in HTTP headers can manipulate environment variables.

Can CVE-2011-5279 affect Windows 2000 or Windows NT systems?

CVE-2011-5279 specifically affects IIS running on Windows 2000 and Windows NT.

Vulnerability/
CVE-2011-5279

medium

CWE

NVD-CWE-Other 93

23/4/2014

7/8/2024

CVE-2011-5279: CRLF Injection

First published: Wed Apr 23 2014(Updated: )

CRLF injection vulnerability in the CGI implementation in Microsoft Internet Information Services (IIS) 4.x and 5.x on Windows NT and Windows 2000 allows remote attackers to modify arbitrary uppercase environment variables via a \n (newline) character in an HTTP header.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Microsoft Internet Information Services (IIS)	=4.0
Microsoft Internet Information Services (IIS)	=5.0
Microsoft Windows 2000
Microsoft Windows NT

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2011-5279?
CVE-2011-5279 has a medium severity rating due to its potential to allow remote attackers to modify environment variables.
How do I fix CVE-2011-5279?
To fix CVE-2011-5279, it is recommended to upgrade to a newer version of Microsoft Internet Information Services that does not have this vulnerability.
Which versions of IIS are affected by CVE-2011-5279?
CVE-2011-5279 affects Microsoft Internet Information Services versions 4.x and 5.x.
What type of attack is associated with CVE-2011-5279?
CVE-2011-5279 is associated with CRLF injection attacks where newline characters in HTTP headers can manipulate environment variables.
Can CVE-2011-5279 affect Windows 2000 or Windows NT systems?
CVE-2011-5279 specifically affects IIS running on Windows 2000 and Windows NT.

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agent/description
agent/first-publish-date
agent/event
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/microsoft
canonical/microsoft internet information services (iis)
version/microsoft internet information services (iis)/4.0
version/microsoft internet information services (iis)/5.0
canonical/microsoft windows 2000
canonical/microsoft windows nt

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