Microsoft Excel Viewer 3.x OCX ActiveX Control memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft Excel Viewer 3.x. The affected element is an unknown function of the component OCX ActiveX Control. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2007-2588. In addition, an exploit is available. It is advised to disable the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Excel Viewer 3.x (Spreadsheet Software). This issue affects an unknown functionality of the component OCX ActiveX Control. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflows in the Office Viewer OCX ActiveX control (oa.ocx) 3.2 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long argument to the (1) HttpDownloadFile, (2) Open, (3) OpenWebFile, (4) DoOleCommand, (5) FTPDownloadFile, (6) FTPUploadFile, (7) HttpUploadFile, (8) Save, or (9) SaveWebFile function.

The weakness was presented 05/07/2007 by shinnai (Website). The advisory is shared at moaxb.blogspot.com. The identification of this vulnerability is CVE-2007-2588 since 05/09/2007. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by shinnai and been published even before and not after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $100k and more.

The best possible mitigation is suggested to be disabling the affected component. Attack attempts may be identified with Snort ID 11199.

The vulnerability is also documented in the databases at X-Force (34067), Exploit-DB (3845), SecurityFocus (BID 23811†), OSVDB (34335†) and Secunia (SA25143†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: shinnai
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Disable
Status: 🔍

0-Day Time: 🔍
Snort ID: 11199

Timelineinfo

05/04/2007 🔍
05/04/2007 +0 days 🔍
05/04/2007 +0 days 🔍
05/07/2007 +3 days 🔍
05/07/2007 +0 days 🔍
05/07/2007 +0 days 🔍
05/09/2007 +1 days 🔍
05/09/2007 +0 days 🔍
05/10/2007 +1 days 🔍
03/29/2019 +4341 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: moaxb.blogspot.com
Researcher: shinnai
Status: Not defined

CVE: CVE-2007-2588 (🔍)
GCVE (CVE): GCVE-0-2007-2588
GCVE (VulDB): GCVE-100-3053
X-Force: 34067 - Office Viewer OA.ocx ActiveX control buffer overflow, High Risk
SecurityFocus: 23811 - Office OCX OA.OCX Office Viewer ActiveX Denial of Service Vulnerabilities
Secunia: 25143 - Office Viewer ActiveX Control Insecure Methods and Buffer Overflow Vulnerabilities, Highly Critical
OSVDB: 34335 - Office Viewer ActiveX (OA.ocx) Multiple Method Overflows
Vupen: ADV-2007-1664

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/10/2007 14:09
Updated: 03/29/2019 15:12
Changes: 05/10/2007 14:09 (80), 03/29/2019 15:12 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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