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Credit:
The information has been provided by iDefense Labs Security Advisories.
The original article can be found at: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=733, http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=732 and http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=731
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Vulnerable Systems:
* Ingres 2006 Enterprise Edition Release 2 for Linux x86 (32-bit)
Immune Systems:
* Ingres 2006 release 2 (9.1.0)
* Ingres 2006 release 1 (9.0.4)
* Ingres 2.6
Ingres Database for Linux ingvalidpw Untrusted Library Path Vulnerability:
Local exploitation of an untrusted library path vulnerability in the "ingvalidpw" utility, as included in Ingres Database 2006 Release 2 for Linux, allows attackers to execute arbitrary code with root privileges.
The vulnerability exists within the "ingvalidpw" utility included with Ingres database. This utility is used to verify a user's credentials, and is installed set-uid root. When loading shared libraries, the "ingvalidpw" program will load libraries from a directory owned by the "ingres" user. By using a specially crafted library, a user with "ingres" privileges can gain root.
Analysis:
Exploitation of this vulnerability allows an attacker to elevate their privileges from the "ingres" user to root. By itself, this is not that serious of a vulnerability. However, when combined with the libbecompat and verifydb vulnerabilities it allows an unprivileged local user to gain root privileges.
Vendor response:
"This problem has been identified and resolved by Ingres in the following releases: Ingres 2006 release 2 (9.1.0), Ingres 2006 release 1 (9.0.4), and Ingres 2.6."
For more information, refer to Ingres' advisory at the following URL.
http://www.ingres.com/support/security-alert-080108.php
CVE Information:
CVE-2008-3357
Disclosure timeline:
07/20/2007 - Initial vendor response
07/23/2007 - Initial vendor notification
08/01/2008 - Coordinated public disclosure
Ingres Database for Linux libbecompat Stack Based Buffer Overflow Vulnerability
Local exploitation of a stack-based buffer overflow vulnerability in the "libbecompat" library, as included in Ingres Database 2006 Release 2 for Linux, allows attackers to execute arbitrary code with the privileges of the Ingres user.
The vulnerability exists within the "libbecompat" library that is used by several of the set-uid "ingres" utilities included with Ingres. When copying a user supplied environment variable into a fixed-size stack buffer, the library fails to check the length of the source string. This results in an exploitable stack buffer overflow.
Analysis:
Exploitation of this vulnerability allows an attacker to execute arbitrary code with the privileges of the "ingres" user. By itself, this vulnerability does not have very serious consequences. However, when combined with the library loading vulnerability, it allows an attacker to execute arbitrary code with root privileges.
Vendor response:
"This problem has been identified and resolved by Ingres in the following releases: Ingres 2006 release 2 (9.1.0), Ingres 2006 release 1 (9.0.4), and Ingres 2.6."
For more information, refer to Ingres' advisory at the following URL.
http://www.ingres.com/support/security-alert-080108.php
CVE Information:
CVE-2008-3389
Disclosure timeline:
07/20/2007 - Initial vendor response
07/23/2007 - Initial vendor notification
08/01/2008 - Coordinated public disclosure
Ingres Database for Linux verifydb Insecure File Permissions Modification Vulnerability
Local exploitation of a file permissions modification vulnerability in the "verifydb" utility, as included with Ingres Database 2006 Release 2 for Linux, allows attackers to modify the permissions of files owned by the Ingres database user.
The vulnerability exists within the "verifydb" utility included with Ingres. It is used to cleanup unneeded files created in the database directory. This program has the set-uid bit set, and is owned by the "ingres" user.
The "verifydb" program improperly changes the permissions on files. The program first creates a file called "iivdb.log" in the current directory, and then makes it world writable. By creating a symbolic link to a file owned by the "ingres" user, an attacker can gain write access to the target file.
Analysis:
Exploitation of this vulnerability allows an attacker to overwrite arbitrary files owned by the "ingres" user. By itself, this vulnerability does not have very serious consequences. However, when combined with the library loading vulnerability, it allows an attacker to execute arbitrary code with root privileges.
Vendor response:
"This problem has been identified and resolved by Ingres in the following releases: Ingres 2006 release 2 (9.1.0), Ingres 2006 release 1 (9.0.4), and Ingres 2.6."
For more information, refer to Ingres' advisory at the following URL.
http://www.ingres.com/support/security-alert-080108.php
CVE Information:
CVE-2008-3356
Disclosure timeline:
07/20/2007 - Initial vendor response
07/23/2007 - Initial vendor notification
08/01/2008 - Coordinated public disclosure
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