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Borland Interbase External Table Vulnerability
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Secunia Advisory:
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SA8551
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Release Date:
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2003-04-09
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Critical:
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Less critical
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Impact:
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Manipulation of data
Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| Software: | Borland Interbase 6.x
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Description:
A vulnerability identified in Borland InterBase can be exploited by malicious users to escalate their privileges on a vulnerable system.
The vulnerability is caused by an access control error. The problem is that it is possible to create an external table in an arbitrary file on the system. If the file exists, it is possible to manipulate it by appending data to it. Reportedly, InterBase is installed with SYSTEM or root privileges by default, which allows manipulation of any file on the system.
An example was included in the original advisory, which creates a user with root privileges and no password:
create table test external '/etc/passwd' (id char(80));
insert into test values('r00t::0:0:root:/root:/bin/bash');
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, scan using the Network Software Inspector.
Solution:
Upgrade to version 7.0. Allow only trusted users access to the system.
Provided and/or discovered by:
Kotala Zdenek
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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4 Related Secunia Security Advisories
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1. Borland InterBase Multiple Buffer Overflow Vulnerabilities
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2. Borland Interbase / Firebird Database Name Buffer Overflow Vulnerability
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3. Borland Interbase ISC_LOCK_ENV Variable Privilege Escalation
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4. Borland Interbase local root vulnerability
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