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Insecure Library Loading
Moderately critical

Informix Dynamic Server Multiple Vulnerabilities

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Release Date:  2006-08-01    Last Update:  2006-08-15    Views:  12,028

Secunia Advisory SA21301

Where:

From local network

Impact:

Exposure of sensitive information, Privilege escalation, DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


NGSSoftware has reported multiple vulnerabilities in Informix Dynamic Server, which can be exploited by malicious, local users to gain escalated privileges, by malicious users to cause a DoS (Denial of Service) and gain knowledge of sensitive information, and by malicious people to compromise a vulnerable system.

1) A boundary error in the "DBINFO()" function can be exploited to cause a buffer overflow.

2) A boundary error in the "LOTOFILE()" function can be exploited to cause a buffer overflow.

3) A boundary error in the "FILETOCLOB()" function can be exploited to cause a buffer overflow.

4) It is possible to execute arbitrary commands via the "dbimp" , "dbexp", and "start_onpload" procedures in sysmaster.

5) A boundary error within the handling of usernames during the authentication process can be exploited to cause a stack-based buffer overflow via an overly long username.

Successful exploitation allows execution of arbitrary code.

NOTE: This was originally fixed in a patch, which introduced a boundary error in the error logging functionality.

6) It's possible to execute arbitrary commands via a "SET DEBUG FILE" statement.

7) A boundary error within the handling of "SET DEBUG FILE" statements can be exploited to cause a buffer overflow.

8) A boundary error in the "getname()" function can be exploited to cause a buffer overflow.

9) It's possible to upgrade privileges via C code UDR.

10) Two unspecified errors can be exploited to cause a DoS.

11) User passwords are stored insecurely in plain text in shared memory and may be exposed.

12) Any user has permissions to create a database. This can be exploited to execute arbitrary code.

13) A boundary error in the "ifx_file_to_file()" function can be exploited to cause a buffer overflow.

14) A boundary error within the handling of the "SQLIDEBUG" environment variable in various applications can be exploited to cause a stack-based buffer overflow.

Successful exploitation allows execution of arbitrary code with root privileges.

This has been reported to affect Informix on the Linux operating system.

15) It is possible to create and write to arbitrary files via the "LOTOFILE", "rlt_tracefile_set", and "SET DEBUG FILE" functions.

16) It is possible to load a malicious library via the "ifx_load_internal" SQL function.

The vulnerabilities have been reported in versions 7.3, 9.4, and 10.0. Prior versions may also be affected.


Solution:
Update to version 7.31.xD9, 9.40.xC8, or 10.00.xC4.

Provided and/or discovered by:
David Litchfield and the team at NGSSoftware.

Original Advisory:
IBM:
http://www-1.ibm.com/support/docview.wss?uid=swg21242921

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Informix Dynamic Server Multiple Vulnerabilities

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