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Vulnerability Note VU#118277The Oracle Internet Directory LDAP (oidldapd) contains buffer overflowOverviewOracle Internet Directory version 2.0.6, which ships with Oracle version 8i for Linux (8.1.6), contains a program, oidldapd, that is an LDAP Daemon. There is a buffer overflow in the LDAP Daemon that allows a local user to obtain the euid of the oidldapd process, typically user oracle.I. DescriptionThere is a buffer overflow in the oidldapd with regard to the "connect" option. Since oidldapd typically runs as user oracle, this vulnerability can be used by local users to obtain euid of user oracle. As a result of the default installation, user oracle owns all database files. An exploit has been published.II. ImpactAll database files can be edited/deleted by a malicious user. A local user can obtain privileges of the oidldapd process, typically oracle.III. SolutionOracle encourages all Linux directory developers to upgrade to Oracle Internet Directory, v2.1.1, part of the Oracle 8.1.7 (8i Release 3) server media pack, from http://technet.oracle.com/.If you use a UFS filesystem, use chmod to set the file permissions to 710 for the oidldapd and oidmon executables. For other filesystems (e.g. AFS) use equivalent settings to restrict access to privileged users only.
ReferencesVU#610904 This vulnerability was first published by Juan Manuel Pascual Escriba in a Plazasite advisory. This document was written by Jason Rafail.
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