SQLite Default Value Authorization Bypass Vulnerability

July 1st, 2015
ZDI-15-291 ZDI-CAN-2901

CVE ID

CVE-2015-3659

CVSS Score

7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected Vendors

SQLite

Affected Products

SQLite

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of SQLite. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the handling of DEFAULT expressions for column values. The issue lies in the ability to create a table that will execute privileged functions by specifying a DEFAULT value for a column and then inserting into the table. An attacker can leverage this vulnerability to execute restricted SQL statements under the context of the current process.

Additional Details

SQLite has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT201222

Disclosure Timeline

  • 2015-05-18 - Vulnerability reported to vendor
  • 2015-07-01 - Coordinated public release of advisory

Credit

Peter Rutenbar

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