CVE-2016-6622: phpMyAdmin DoS Vulnerability

Published Dec 11, 2016
·
Updated

An issue was discovered in phpMyAdmin. An unauthenticated user is able to execute a denial-of-service (DoS) attack by forcing persistent connections when phpMyAdmin is running with $cfg['AllowArbitraryServer']=true. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.

Other sources

An issue was discovered in phpMyAdmin. An unauthenticated user is able to execute a denial-of-service (DoS) attack by forcing persistent connections when phpMyAdmin is running with $cfg['AllowArbitraryServer']=true. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.

— MITRE

Affected Software

66 affected componentsFixes available
composer/phpmyadmin/phpmyadmin>=4.0<4.0.10.17
4.0.10.17
composer/phpmyadmin/phpmyadmin>=4.4<4.4.15.8
4.4.15.8
composer/phpmyadmin/phpmyadmin>=4.6<4.6.4
4.6.4
phpMyAdmin phpMyAdmin=4.0.0
phpMyAdmin phpMyAdmin=4.0.1
phpMyAdmin phpMyAdmin=4.0.2
phpMyAdmin phpMyAdmin=4.0.3
phpMyAdmin phpMyAdmin=4.0.4
phpMyAdmin phpMyAdmin=4.0.4.1
phpMyAdmin phpMyAdmin=4.0.4.2
phpMyAdmin phpMyAdmin=4.0.5
phpMyAdmin phpMyAdmin=4.0.6
phpMyAdmin phpMyAdmin=4.0.7
phpMyAdmin phpMyAdmin=4.0.8
phpMyAdmin phpMyAdmin=4.0.9
phpMyAdmin phpMyAdmin=4.0.10
phpMyAdmin phpMyAdmin=4.0.10.1
phpMyAdmin phpMyAdmin=4.0.10.2
phpMyAdmin phpMyAdmin=4.0.10.3
phpMyAdmin phpMyAdmin=4.0.10.4
phpMyAdmin phpMyAdmin=4.0.10.5
phpMyAdmin phpMyAdmin=4.0.10.6
phpMyAdmin phpMyAdmin=4.0.10.7
phpMyAdmin phpMyAdmin=4.0.10.8
phpMyAdmin phpMyAdmin=4.0.10.9
phpMyAdmin phpMyAdmin=4.0.10.10
phpMyAdmin phpMyAdmin=4.0.10.11
phpMyAdmin phpMyAdmin=4.0.10.12
phpMyAdmin phpMyAdmin=4.0.10.13
phpMyAdmin phpMyAdmin=4.0.10.14
phpMyAdmin phpMyAdmin=4.0.10.15
phpMyAdmin phpMyAdmin=4.0.10.16
phpMyAdmin phpMyAdmin=4.4.0
phpMyAdmin phpMyAdmin=4.4.1
phpMyAdmin phpMyAdmin=4.4.1.1
phpMyAdmin phpMyAdmin=4.4.2
phpMyAdmin phpMyAdmin=4.4.3
phpMyAdmin phpMyAdmin=4.4.4
phpMyAdmin phpMyAdmin=4.4.5
phpMyAdmin phpMyAdmin=4.4.6
phpMyAdmin phpMyAdmin=4.4.6.1
phpMyAdmin phpMyAdmin=4.4.7
phpMyAdmin phpMyAdmin=4.4.8
phpMyAdmin phpMyAdmin=4.4.9
phpMyAdmin phpMyAdmin=4.4.10
phpMyAdmin phpMyAdmin=4.4.11
phpMyAdmin phpMyAdmin=4.4.12
phpMyAdmin phpMyAdmin=4.4.13
phpMyAdmin phpMyAdmin=4.4.13.1
phpMyAdmin phpMyAdmin=4.4.14
phpMyAdmin phpMyAdmin=4.4.14.1
phpMyAdmin phpMyAdmin=4.4.15
phpMyAdmin phpMyAdmin=4.4.15.1
phpMyAdmin phpMyAdmin=4.4.15.2
phpMyAdmin phpMyAdmin=4.4.15.3
phpMyAdmin phpMyAdmin=4.4.15.4
phpMyAdmin phpMyAdmin=4.4.15.5
phpMyAdmin phpMyAdmin=4.4.15.6
phpMyAdmin phpMyAdmin=4.4.15.7
phpMyAdmin phpMyAdmin=4.6.0
phpMyAdmin phpMyAdmin=4.6.1
phpMyAdmin phpMyAdmin=4.6.2
phpMyAdmin phpMyAdmin=4.6.3
composer/phpmyadmin/phpmyadmin>=4.0, <4.0.10.17
4.0.10.17
composer/phpmyadmin/phpmyadmin>=4.4, <4.4.15.8
4.4.15.8
composer/phpmyadmin/phpmyadmin>=4.6, <4.6.4
4.6.4

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade composer/phpmyadmin/phpmyadmin to a version that resolves this vulnerability.

    Fixed in 4.0.10.17
  2. Upgrade

    Upgrade composer/phpmyadmin/phpmyadmin to a version that resolves this vulnerability.

    Fixed in 4.4.15.8
  3. Upgrade

    Upgrade composer/phpmyadmin/phpmyadmin to a version that resolves this vulnerability.

    Fixed in 4.6.4
  4. Upgrade

    Upgrade phpMyAdmin to a version that resolves this vulnerability.

    Fixed in 4.6.4
  5. Upgrade

    Upgrade phpMyAdmin to a version that resolves this vulnerability.

    Fixed in 4.4.15.8
  6. Upgrade

    Upgrade phpMyAdmin to a version that resolves this vulnerability.

    Fixed in 4.0.10.17

Event History

Dec 11, 2016
CVE Published
via MITRE·02:00 AM
Data Sourced
via MITRE·02:00 AM
Description
Data Sourced
via NVD·02:59 AM
RemedyDescriptionSeverityWeaknessAffected Software
May 14, 2022
Advisory Published
03:14 AM
Data Sourced
via GitHub·03:14 AM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2016-6622?

CVE-2016-6622 has a medium severity rating as it allows an unauthenticated user to execute denial-of-service attacks.

2

How do I fix CVE-2016-6622?

To fix CVE-2016-6622, upgrade phpMyAdmin to version 4.6.4 or later for 4.6.x versions and 4.4.15.8 or later for 4.4.x versions.

3

What versions are affected by CVE-2016-6622?

CVE-2016-6622 affects all phpMyAdmin versions prior to 4.6.4 for 4.6.x and prior to 4.4.15.8 for 4.4.x.

4

Can CVE-2016-6622 be exploited remotely?

Yes, CVE-2016-6622 can be exploited remotely by an unauthenticated user to perform denial-of-service attacks.

5

What configuration increases the risk of CVE-2016-6622?

The risk of CVE-2016-6622 increases when phpMyAdmin is running with the configuration option '$cfg['AllowArbitraryServer']=true'.

Company

Resources

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