Chilkat Software Chilkat Xml Activex Control up to 3.0.3.0 ActiveX Control ChilkatUtil.dll input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.9$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Chilkat Software Chilkat Xml Activex Control up to 3.0.3.0. This affects an unknown part in the library ChilkatUtil.dll of the component ActiveX Control. Executing a manipulation can lead to input validation. This vulnerability is handled as CVE-2008-4343. Additionally, an exploit exists.

Detailsinfo

A vulnerability has been found in Chilkat Software Chilkat Xml Activex Control up to 3.0.3.0 and classified as very critical. This vulnerability affects an unknown code block in the library ChilkatUtil.dll of the component ActiveX Control. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Chilkat XML ChilkatUtil.CkData.1 ActiveX control (ChilkatUtil.dll) 3.0.3.0 and earlier allows remote attackers to create, overwrite, and modify arbitrary files for execution via a call to the (1) SaveToFile, (2) SaveToTempFile, or (3) AppendBinary method. NOTE: this issue might only be exploitable in limited environments or non-default browser settings. NOTE: this can be leveraged for remote code execution by accessing files using hcp:// URLs.

The weakness was released 09/30/2008 by shinnai (Website). The advisory is available at milw0rm.com. This vulnerability was named CVE-2008-4343 since 09/30/2008. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/25/2025).

It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115962 (Chilkat XML ActiveX Control Multiple Vulnerabilities - Zero Day).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (45333), SecurityFocus (BID 31332†), Secunia (SA31951†) and Vulnerability Center (SBV-19643†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.8
VulDB Temp Score: 8.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/23/2008 🔍
09/23/2008 +0 days 🔍
09/30/2008 +7 days 🔍
09/30/2008 +0 days 🔍
09/30/2008 +0 days 🔍
10/06/2008 +6 days 🔍
03/17/2015 +2353 days 🔍
05/25/2025 +3722 days 🔍

Sourcesinfo

Advisory: milw0rm.com⛔
Researcher: shinnai
Status: Not defined

CVE: CVE-2008-4343 (🔍)
GCVE (CVE): GCVE-0-2008-4343
GCVE (VulDB): GCVE-100-44266
X-Force: 45333
SecurityFocus: 31332 - Chilkat XML ActiveX Control Multiple Vulnerabilities
Secunia: 31951
Vulnerability Center: 19643 - Chilkat XML ChilkatUtil.dll Vulnerability Allows Remote Attackers to Overwrite Arbitrary Files, Medium

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

Entryinfo

Created: 03/17/2015 16:11
Updated: 05/25/2025 22:09
Changes: 03/17/2015 16:11 (54), 08/22/2017 11:27 (9), 08/02/2021 10:21 (3), 11/04/2024 15:32 (19), 05/25/2025 22:09 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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