Date: Fri, 30 Mar 2012 11:45:24 -0400 From: Robert Haas <robertmhaas@...il.com> To: Ludwig Nussel <ludwig.nussel@...e.de> Cc: oss-security@...ts.openwall.com, security@...tgresql.org Subject: Re: [pgsql-security] postgresql-jdbc 8.1 SQL injection with postgresql server 9.1 On Fri, Mar 30, 2012 at 11:27 AM, Robert Haas <robertmhaas@...il.com> wrote: > On Fri, Mar 30, 2012 at 8:51 AM, Ludwig Nussel <ludwig.nussel@...e.de> wrote: >> Postgresql 9.1 turned "standard conforming strings" on by default. >> postgresql-jdbc before version 8.2-504 however did not know about that >> kind of string and escaped single quotes with a backslash always. When >> such an old version of postgresql-jdbc is used with a newer postgresql >> server it not only breaks when strings contain single quotes, it also >> allows for SQL injections. >> The bug is neither in postgresql-jdbc as it was working correctly at the >> time it was released, nor is it really postgresql 9.1's fault which I >> guess doesn't expect and can't detect such an old jdbc adapter. The >> security issue arises when mixing the old adapter and the new server. > > Right. This issue has been previously reported to pgsql-security. > The position of the pgsql-jdbc project is that a client version should > be used with a matching server version; therefore, the project views > the proposed combination as an unsupported configuration. Moreover, > PostgreSQL 8.2.x and postgresql-jdbc-8.2-x were desupported in general > as of December 2011. The end of life dates for each major release are > documented on our web site, and the pgsql-jdbc download site > clearly identifies this version of the driver as an "archived version" > rather than a "supported version". As a rule, bug fix and security > updates are not released for versions which are no longer supported; > users are advised to update to a supported version. Users of > pgsql-jdbc are further advised to use a major version that matches the > PostgreSQL server to which they are connecting. > >  http://www.postgresql.org/support/versioning/ >  http://jdbc.postgresql.org/download.html Small correction: the complaint we received was actually about postgresql-jdbc-8.1-x, which is listed as not supported. postgresql-jdbc-8.2-x is still listed as a supported version, but I believe you said this bug could only be reproduced with pre-8.2 versions of JDBC. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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