high
7.5
CWE
399
Advisory Published
Updated

CVE-2016-6407

First published: Sat Sep 17 2016(Updated: )

Cisco AsyncOS through 9.5.0-444 on Web Security Appliance (WSA) devices allows remote attackers to cause a denial of service (link saturation) by making many HTTP requests for overlapping byte ranges simultaneously, aka Bug ID CSCuz27219.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Web Security Appliance=5.6.0-623
Cisco Web Security Appliance=6.0.0-000
Cisco Web Security Appliance=7.1.0
Cisco Web Security Appliance=7.1.1
Cisco Web Security Appliance=7.1.2
Cisco Web Security Appliance=7.1.3
Cisco Web Security Appliance=7.1.4
Cisco Web Security Appliance=7.5.0-000
Cisco Web Security Appliance=7.5.0-825
Cisco Web Security Appliance=7.5.1-000
Cisco Web Security Appliance=7.5.2-000
Cisco Web Security Appliance=7.5.2-hp2-303
Cisco Web Security Appliance=7.7.0-000
Cisco Web Security Appliance=7.7.0-608
Cisco Web Security Appliance=7.7.1-000
Cisco Web Security Appliance=7.7.5-835
Cisco Web Security Appliance=8.0.0-000
Cisco Web Security Appliance=8.0.5
Cisco Web Security Appliance=8.0.6
Cisco Web Security Appliance=8.0.6-078
Cisco Web Security Appliance=8.0.6-119
Cisco Web Security Appliance=8.0.7
Cisco Web Security Appliance=8.0.7-142
Cisco Web Security Appliance=8.0.8-mr-113
Cisco Web Security Appliance=8.5.0-497
Cisco Web Security Appliance=8.5.0.000
Cisco Web Security Appliance=8.5.1-021
Cisco Web Security Appliance=8.5.2-024
Cisco Web Security Appliance=8.5.2-027
Cisco Web Security Appliance=8.5.3-055
Cisco Web Security Appliance=8.8.0-000
Cisco Web Security Appliance=8.8.0-085
Cisco Web Security Appliance=9.0.0-193
Cisco Web Security Appliance=9.0_base
Cisco Web Security Appliance=9.1.0-000
Cisco Web Security Appliance=9.1.0-070
Cisco Web Security Appliance=9.1_base
Cisco Web Security Appliance=9.5.0-235
Cisco Web Security Appliance=9.5.0-284
Cisco Web Security Appliance=9.5.0-444
Cisco Web Security Appliance=9.5_base

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-6407?

    CVE-2016-6407 has been rated as a high severity vulnerability due to its potential to cause denial of service via link saturation.

  • How do I fix CVE-2016-6407?

    To fix CVE-2016-6407, it is recommended to upgrade your Cisco Web Security Appliance to a version that addresses this vulnerability.

  • Which Cisco products are affected by CVE-2016-6407?

    CVE-2016-6407 affects multiple versions of Cisco Web Security Appliance, specifically AsyncOS versions up to 9.5.0-444.

  • Can CVE-2016-6407 be exploited remotely?

    Yes, CVE-2016-6407 can be exploited remotely by attackers making numerous HTTP requests for overlapping byte ranges.

  • What type of attack does CVE-2016-6407 facilitate?

    CVE-2016-6407 facilitates denial of service attacks by overwhelming the device with excessive HTTP requests.

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