SmartCode VNC Manager 3.6 ActiveX Control scvncctrl.dll connectasyncex heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in SmartCode VNC Manager 3.6. This affects the function connectasyncex in the library scvncctrl.dll of the component ActiveX Control. Such manipulation leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2007-2526. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in SmartCode VNC Manager 3.6. Affected by this issue is the function connectasyncex in the library scvncctrl.dll of the component ActiveX Control. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in the ConnectAsyncEx function in VNC Viewer ActiveX control (scvncctrl.dll) in the SmartCode VNC Manager 3.6 allows remote attackers to execute arbitrary code via a long argument.

The weakness was disclosed 05/08/2007 by shinnai (Website). The advisory is shared for download at vupen.com. This vulnerability is handled as CVE-2007-2526 since 05/08/2007. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/12/2024).

A public exploit has been developed by shinnai and been published before and not just after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Attack attempts may be identified with Snort ID 11218.

The vulnerability is also documented in the databases at X-Force (34149), Exploit-DB (3873), SecurityFocus (BID 23869†), OSVDB (34340†) and Secunia (SA25203†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.4

VulDB Base Score: 10.0
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / 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: no mitigation known
Status: 🔍

0-Day Time: 🔍
Snort ID: 11218

Timelineinfo

05/08/2007 🔍
05/08/2007 +0 days 🔍
05/08/2007 +0 days 🔍
05/08/2007 +0 days 🔍
05/08/2007 +0 days 🔍
05/08/2007 +0 days 🔍
05/08/2007 +0 days 🔍
05/08/2007 +0 days 🔍
03/13/2015 +2865 days 🔍
09/12/2024 +3471 days 🔍

Sourcesinfo

Advisory: vupen.com⛔
Researcher: shinnai
Status: Confirmed

CVE: CVE-2007-2526 (🔍)
GCVE (CVE): GCVE-0-2007-2526
GCVE (VulDB): GCVE-100-36632
X-Force: 34149 - SmartCode VNC Manager scvncctrl.dll ActiveX control buffer overflow
SecurityFocus: 23869 - SmartCode VNC Manager ActiveX Control Scvncctrl.DLL Denial of Service Vulnerability
Secunia: 25203 - SmartCode VNC Manager VNC Viewer ActiveX Control Buffer Overflows, Highly Critical
OSVDB: 34340 - SmartCode VNC Manager VNC Viewer ActiveX (scvncctrl.dll) Overflow
Vupen: ADV-2007-1704

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

Entryinfo

Created: 03/13/2015 14:56
Updated: 09/12/2024 09:43
Changes: 03/13/2015 14:56 (59), 10/22/2017 14:18 (13), 09/12/2024 09:43 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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