[DERBY-1708] Unprivileged user can perform lock table statement on a table which he/she does not have any access rights

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.2.1.6
• Fix Version/s: 10.2.1.6, 10.3.1.4
• Component/s: SQL
• Environment: Sun JDK 1.4.2
• Urgency: Urgent
• Assignee: Yip Ng
• Reporter: Yip Ng
• Created: 16/Aug/06 22:17
• Updated: 13/Dec/07 09:05
• Resolved: 25/Aug/06 22:09

Description

An unprivileged user was able to lock a table for which he/she does not own. e.g.:

ij version 10.2
ij> connect 'jdbc:derby:wombat;create=true' user 'user1' as user1;
WARNING 01J14: SQL authorization is being used without first enabling authentication.
ij> create table t1 (i int);
0 rows inserted/updated/deleted
ij> connect 'jdbc:derby:wombat;create=true' user 'user2' as user2;
WARNING 01J01: Database 'wombat' not created, connection made to existing database instead.
WARNING 01J14: SQL authorization is being used without first enabling authentication.
ij(USER2)> autocommit off;
ij(USER2)> lock table user1.t1 in exclusive mode;
0 rows inserted/updated/deleted

sysinfo:
------------------ Java Information ------------------
Java Version: 1.4.2_12
Java Vendor: Sun Microsystems Inc.
Java home: C:\Program Files\Java\j2re1.4.2_12
Java classpath: derby.jar;derbytools.jar;.
OS name: Windows XP
OS architecture: x86
OS version: 5.1
Java user name: Yip
Java user home: C:\Documents and Settings\Yip
Java user dir: C:\work3\derby\tests\derby-10.2.1.0\lib
java.specification.name: Java Platform API Specification
java.specification.version: 1.4
--------- Derby Information --------
JRE - JDBC: J2SE 1.4.2 - JDBC 3.0
[C:\work3\derby\tests\derby-10.2.1.0\lib\derby.jar] 10.2.1.0 beta - (430903)
[C:\work3\derby\tests\derby-10.2.1.0\lib\derbytools.jar] 10.2.1.0 beta - (430903
)
------------------------------------------------------
----------------- Locale Information -----------------
Current Locale : [English/United States [en_US]]
Found support for locale: [de_DE]
version: 10.2.1.0 - (430903)
Found support for locale: [es]
version: 10.2.1.0 - (430903)
Found support for locale: [fr]
version: 10.2.1.0 - (430903)
Found support for locale: [it]
version: 10.2.1.0 - (430903)
Found support for locale: [ja_JP]
version: 10.2.1.0 - (430903)
Found support for locale: [ko_KR]
version: 10.2.1.0 - (430903)
Found support for locale: [pt_BR]
version: 10.2.1.0 - (430903)
Found support for locale: [zh_CN]
version: 10.2.1.0 - (430903)
Found support for locale: [zh_TW]
version: 10.2.1.0 - (430903)
------------------------------------------------------

Issue Links

• is related to: DERBY-464 Enhance Derby by adding grant/revoke support. Grant/Revoke provide finner level of privileges than currently provided by Derby that is especially useful in network configurations.