Exploitalert - Database of Exploits

Microsoft Excel Column Index Improper Memory Access

CVE	Category	Price	Severity
CVE-2006-0029	CWE-119	$50,000	High

Author	Risk	Exploitation Type	Date
Unknown	High	Local	2006-03-23

CVSS	EPSS	EPSSP
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	0.073296	0.75

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction	None	UI	The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	High	C	There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

http://cxsecurity.com/ascii/WLB-2006030078

Fortinet Security Advisory: FSA-2006-08 Microsoft Excel Column Index Improper Memory Access Advisory Date : March 14, 2006 Reported Date : January 24, 2006 Vendor : Microsoft Affected Products : Microsoft Excel 2003 Chinese Version Windows XP Home Edition Chinese Version and possible all versions of Microsoft Excel. Severity : High Reference : http://www.microsoft.com/technet/security/Bulletin/MS06-012.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0029 http://www.securityfocus.com/bid/15780 Description : Fortinet Security Research Team (FSRT) has discovered a Improper Memory Access Vulnerability in the Microsoft Excel software. This vulnerability is due to Microsoft Excel's manipulation of opcode 0x001D, when provided with a random Column Index, it will cause a Improper Memory Access. An remote attacker could construct a .xls file and put it on controlled web site. When the user opens the .xls file with Microsoft Internet Explorer, the browser will call Microsoft Excel to open the .xls file automatically, and this will cause Microsoft Excel to crash. If excel file is specially crafted, it may allow attackers to execute arbitrary code on the affected system. Impact : Execution of arbitrary code leading to system compromise. Solution : Microsoft has released a update for this vulnerability, which is available for downloading from Microsoft web site, see reference. Fortinet Protection: FortiGate series of security systems have been updated to detect exploits targeting this vulnerability. Acknowledgment : Dejun Meng of Fortinet Security Research team found this vulnerability. Disclaimer : Although Fortinet has attempted to provide accurate information in these materials, Fortinet assumes no legal responsibility for the accuracy or completeness of the information. More specific information is available on request from Fortinet. Please note that Fortinet's product information does not constitute or contain any guarantee, warranty or legally binding representation, unless expressly identified as such in a duly signed writing.

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