CVE-2011-2483: Medium severity php vulnerability

Published Aug 25, 2011
·
Updated

cryptblowfish before 1.1, as used in PHP before 5.3.7 on certain platforms, PostgreSQL before 8.4.9, and other products, does not properly handle 8-bit characters, which makes it easier for context-dependent attackers to determine a cleartext password by leveraging knowledge of a password hash.

Affected Software

121 affected components
PHP PHP<=5.3.6
PHP PHP=1.0
PHP PHP=2.0
PHP PHP=2.0b10
PHP PHP=3.0
PHP PHP=3.0.1
PHP PHP=3.0.2
PHP PHP=3.0.3
PHP PHP=3.0.4
PHP PHP=3.0.5
PHP PHP=3.0.6
PHP PHP=3.0.7
PHP PHP=3.0.8
PHP PHP=3.0.9
PHP PHP=3.0.10
PHP PHP=3.0.11
PHP PHP=3.0.12
PHP PHP=3.0.13
PHP PHP=3.0.14
PHP PHP=3.0.15
PHP PHP=3.0.16
PHP PHP=3.0.17
PHP PHP=3.0.18
PHP PHP=4.0-beta_4_patch1
PHP PHP=4.0-beta1
PHP PHP=4.0-beta2
PHP PHP=4.0-beta3
PHP PHP=4.0-beta4
PHP PHP=4.0.0
PHP PHP=4.0.1
PHP PHP=4.0.2
PHP PHP=4.0.3
PHP PHP=4.0.4
PHP PHP=4.0.5
PHP PHP=4.0.6
PHP PHP=4.0.7
PHP PHP=4.1.0
PHP PHP=4.1.1
PHP PHP=4.1.2
PHP PHP=4.2.0
PHP PHP=4.2.1
PHP PHP=4.2.2
PHP PHP=4.2.3
PHP PHP=4.3.0
PHP PHP=4.3.1
PHP PHP=4.3.2
PHP PHP=4.3.3
PHP PHP=4.3.4
PHP PHP=4.3.5
PHP PHP=4.3.6
PHP PHP=4.3.7
PHP PHP=4.3.8
PHP PHP=4.3.9
PHP PHP=4.3.10
PHP PHP=4.3.11
PHP PHP=4.4.0
PHP PHP=4.4.1
PHP PHP=4.4.2
PHP PHP=4.4.3
PHP PHP=4.4.4
PHP PHP=4.4.5
PHP PHP=4.4.6
PHP PHP=4.4.7
PHP PHP=4.4.8
PHP PHP=4.4.9
PHP PHP=5.0.0
PHP PHP=5.0.0-beta1
PHP PHP=5.0.0-beta2
PHP PHP=5.0.0-beta3
PHP PHP=5.0.0-beta4
PHP PHP=5.0.0-rc1
PHP PHP=5.0.0-rc2
PHP PHP=5.0.0-rc3
PHP PHP=5.0.1
PHP PHP=5.0.2
PHP PHP=5.0.3
PHP PHP=5.0.4
PHP PHP=5.0.5
PHP PHP=5.1.0
PHP PHP=5.1.1
PHP PHP=5.1.2
PHP PHP=5.1.3
PHP PHP=5.1.4
PHP PHP=5.1.5
PHP PHP=5.1.6
PHP PHP=5.2.0
PHP PHP=5.2.1
PHP PHP=5.2.2
PHP PHP=5.2.3
PHP PHP=5.2.4
PHP PHP=5.2.5
PHP PHP=5.2.6
PHP PHP=5.2.8
PHP PHP=5.2.9
PHP PHP=5.2.10
PHP PHP=5.2.11
PHP PHP=5.2.12
PHP PHP=5.2.13
PHP PHP=5.2.14
PHP PHP=5.3.0
PHP PHP=5.3.1
PHP PHP=5.3.2
PHP PHP=5.3.3
PHP PHP=5.3.4
PHP PHP=5.3.5
Solar Designer Crypt Blowfish<=0.4.7
Solar Designer Crypt Blowfish=0.2
Solar Designer Crypt Blowfish=0.3
Solar Designer Crypt Blowfish=0.4
Solar Designer Crypt Blowfish=0.4.1
Solar Designer Crypt Blowfish=0.4.2
Solar Designer Crypt Blowfish=0.4.3
Solar Designer Crypt Blowfish=0.4.4
Solar Designer Crypt Blowfish=0.4.5
Solar Designer Crypt Blowfish=0.4.6
PHP PHP<5.3.7
PostgreSQL postgresql>=8.2.0<8.2.22
PostgreSQL postgresql>=8.3.0<8.3.16
PostgreSQL postgresql>=8.4.0<8.4.9
PostgreSQL postgresql>=9.0.0<9.0.5
Openwall Crypt Blowfish<1.1

Remediation

Patch Available

http://www.openwall.com/crypt/

Patch Available

http://www.php.net/archive/2011.php#id2011-08-18-1

Patch Available

http://www.postgresql.org/docs/8.4/static/release-8-4-9.html

Event History

Aug 25, 2011
CVE Published
via MITRE·02:00 PM
Data Sourced
via MITRE·02:00 PM
Description

Frequently Asked Questions

1

What is the severity of CVE-2011-2483?

CVE-2011-2483 has been classified as a medium severity vulnerability due to its potential to expose cleartext passwords.

2

How do I fix CVE-2011-2483?

To fix CVE-2011-2483, upgrade to a version of PHP greater than 5.3.6 or an updated version of the crypt_blowfish library.

3

Which software is affected by CVE-2011-2483?

CVE-2011-2483 affects PHP versions prior to 5.3.7, PostgreSQL versions before 8.4.9, and older versions of the crypt_blowfish library.

4

What are the implications of CVE-2011-2483?

Exploitation of CVE-2011-2483 can allow attackers to determine cleartext passwords based on knowledge of password hashes.

5

How can I mitigate the risks of CVE-2011-2483?

Mitigation for CVE-2011-2483 includes updating affected software to the latest versions and disallowing the use of weak passwords.

Company

Resources

Contact

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