[ GLSA 200712-05 ] PEAR::MDB2: Information disclosure

[GLSA]

Gentoo Linux Security Advisory

Title: PEAR::MDB2: Information disclosure (GLSA 200712-05)
Severity: normal
Exploitable: remote
Date: December 09, 2007
Bug(s): #198446
ID: 200712-05

Synopsis

A vulnerability when handling database input in PEAR::MDB2 allows remote attackers to obtain sensitive information.

Background

PEAR::MDB2 is a database abstraction layer for PHP aimed to provide a common API for all supported relational database management systems. A LOB ("large object") is a database field holding binary data.

Affected Packages

Package: dev-php/PEAR-MDB2
Vulnerable: < 2.5.0_alpha1
Unaffected: >= 2.5.0_alpha1
Architectures: All supported architectures


Description

priyadi discovered that the request to store a URL string as a LOB is treated as a request to retrieve and store the contents of the URL.

Impact

If an application using PEAR::MDB2 allows input of LOB values via a web form, remote attackers could use the application as an indirect proxy or obtain sensitive information, including "file://" URLs local to the web server.

Workaround

As a workaround, manually filter input before storing it as a LOB in PEAR::MDB2.

Resolution

All PEAR::MDB2 users should upgrade to the latest version: