What is the severity of CVE-2013-5476?

CVE-2013-5476 has a high severity rating, as it can lead to denial of service via crafted IPv4 HTTP traffic.

How do I fix CVE-2013-5476?

To mitigate CVE-2013-5476, upgrade to a fixed version of Cisco IOS that is not affected by this vulnerability.

What types of devices are affected by CVE-2013-5476?

CVE-2013-5476 affects Cisco IOS versions 15.1 and 15.2 when HTTP ALG inspection or content filtering is enabled.

What attack vector is used in CVE-2013-5476?

CVE-2013-5476 can be exploited by remote attackers using specially crafted IPv4 HTTP traffic.

Is there a workaround for CVE-2013-5476?

Disabling content filtering or HTTP ALG inspection on affected Cisco IOS devices can serve as a temporary workaround for CVE-2013-5476.

Vulnerability/
CVE-2013-5476

high

7.8

CWE

27/9/2013

3/10/2022

6/8/2024

CVE-2013-5476: Input Validation

First published: Fri Sep 27 2013(Updated: )

The Zone-Based Firewall (ZFW) feature in Cisco IOS 15.1 through 15.2, when content filtering or HTTP ALG inspection is enabled, allows remote attackers to cause a denial of service (device reload or hang) via crafted IPv4 HTTP traffic, aka Bug ID CSCtx56174.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS	=15.1
Cisco IOS	=15.2

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Reference Links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130925-cce

Frequently Asked Questions

What is the severity of CVE-2013-5476?
CVE-2013-5476 has a high severity rating, as it can lead to denial of service via crafted IPv4 HTTP traffic.
How do I fix CVE-2013-5476?
To mitigate CVE-2013-5476, upgrade to a fixed version of Cisco IOS that is not affected by this vulnerability.
What types of devices are affected by CVE-2013-5476?
CVE-2013-5476 affects Cisco IOS versions 15.1 and 15.2 when HTTP ALG inspection or content filtering is enabled.
What attack vector is used in CVE-2013-5476?
CVE-2013-5476 can be exploited by remote attackers using specially crafted IPv4 HTTP traffic.
Is there a workaround for CVE-2013-5476?
Disabling content filtering or HTTP ALG inspection on affected Cisco IOS devices can serve as a temporary workaround for CVE-2013-5476.

collector/nvd-index
agent/type
agent/first-publish-date
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/weakness
agent/severity
agent/references
agent/author
agent/last-modified-date
agent/tags
agent/event
agent/description
agent/source
vendor/cisco
canonical/cisco ios
version/cisco ios/15.1
version/cisco ios/15.2

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Frequently Asked Questions

What is the severity of CVE-2013-5476?
CVE-2013-5476 has a high severity rating, as it can lead to denial of service via crafted IPv4 HTTP traffic.
How do I fix CVE-2013-5476?
To mitigate CVE-2013-5476, upgrade to a fixed version of Cisco IOS that is not affected by this vulnerability.
What types of devices are affected by CVE-2013-5476?
CVE-2013-5476 affects Cisco IOS versions 15.1 and 15.2 when HTTP ALG inspection or content filtering is enabled.
What attack vector is used in CVE-2013-5476?
CVE-2013-5476 can be exploited by remote attackers using specially crafted IPv4 HTTP traffic.
Is there a workaround for CVE-2013-5476?
Disabling content filtering or HTTP ALG inspection on affected Cisco IOS devices can serve as a temporary workaround for CVE-2013-5476.