A critical SQL injection vulnerability has been identified in the popular ADOdb PHP database abstraction library, specifically affecting the SQLite3 driver component.
The security flaw, tracked as GHSA-vf2r-cxg9-p7rf, was disclosed by GitHub user dregad and affects all versions of the adodb/adodb-php package up to and including version 5.22.9.
This vulnerability poses significant security risks for applications utilizing ADOdb with SQLite3 databases, potentially allowing attackers to execute arbitrary SQL statements through improper parameter escaping.
Technical Details and Attack Vector
The vulnerability stems from inadequate input sanitization within three critical metadata methods: metaColumns(), metaForeignKeys(), and metaIndexes().
When these methods process crafted table names, the improper escaping of query parameters creates an opportunity for SQL injection attacks.
The security flaw specifically manifests when user-supplied data is passed directly to the $table parameters of these affected methods without proper validation or sanitization.
The attack vector becomes particularly dangerous in scenarios where applications allow user input to influence database metadata queries.
An attacker could potentially craft malicious table names containing SQL injection payloads, which would then be executed against the SQLite3 database.
This could lead to unauthorized data access, data manipulation, or complete database compromise, depending on the application’s database permissions and structure.
Patch Release and Mitigation Strategies
The ADOdb development team has addressed this critical vulnerability in version 5.22.10, with the fix implemented through commit 5b8bd52.
The patch focuses on implementing proper parameter escaping mechanisms within the affected metadata methods to prevent SQL injection attacks.
Organizations using ADOdb with SQLite3 databases are strongly advised to upgrade to version 5.22.10 immediately to protect against potential exploitation.
For organizations unable to immediately upgrade, a temporary workaround involves implementing strict input validation to ensure that only controlled, sanitized data is passed to the metaColumns(), metaForeignKeys(), and metaIndexes() methods.
This includes implementing whitelist-based validation for table names and avoiding direct user input in these critical database operations.
The vulnerability was responsibly disclosed by security researcher Marco Nappi, highlighting the importance of community-driven security research in maintaining the integrity of open-source software libraries.
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