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PEAR-Auth: Potential authentication bypass


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200603-13 / pear-auth
Release Date March 17, 2006
Latest Revision March 17, 2006: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
dev-php/PEAR-Auth < 1.2.4 >= 1.2.4 All supported architectures

Related bugreports: #123832


PEAR-Auth did not correctly verify data passed to the DB and LDAP containers, thus allowing to inject false credentials to bypass the authentication.

2.  Impact Information


PEAR-Auth is a PEAR package that provides methods to create a PHP based authentication system.


Matt Van Gundy discovered that PEAR-Auth did not correctly validate data passed to the DB and LDAP containers.


A remote attacker could possibly exploit this vulnerability to bypass the authentication mechanism by injecting specially crafted input to the underlying storage containers.

3.  Resolution Information


There is no known workaround at this time.


All PEAR-Auth users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-php/PEAR-Auth-1.2.4"

4.  References


Page updated March 17, 2006

Summary: This is a Gentoo Linux Security Advisory

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