Chilkat Software Chilkat Crypt Activex Control 2.1 ActiveX Control ChilkatCrypt2.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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9.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Chilkat Software Chilkat Crypt Activex Control 2.1. This affects an unknown part in the library ChilkatCrypt2.dll of the component ActiveX Control. Such manipulation leads to input validation. This vulnerability is listed as CVE-2008-5002. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Chilkat Software Chilkat Crypt Activex Control 2.1. Affected by this issue is an unknown functionality in the library ChilkatCrypt2.dll of the component ActiveX Control. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Insecure method vulnerability in the ChilkatCrypt2.ChilkatCrypt2.1 ActiveX control (ChilkatCrypt2.dll 4.3.2.1) in Chilkat Crypt ActiveX Component allows remote attackers to create and overwrite arbitrary files via the WriteFile method. NOTE: this could be leveraged for code execution by creating executable files in Startup folders or by accessing files using hcp:// URLs. NOTE: some of these details are obtained from third party information.

The bug was discovered 11/03/2008. The weakness was presented 11/10/2008 by shinnai (Website). The advisory is shared for download at milw0rm.com. This vulnerability is handled as CVE-2008-5002 since 11/10/2008. 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 05/25/2025).

The exploit is available at securityfocus.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119387 (Chilkat Crypt ActiveX Control "SaveDecrypted()" Insecure Method Vulnerability - 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 (46315), Exploit-DB (6963), SecurityFocus (BID 32073†), OSVDB (49510†) and Secunia (SA32513†). Once again VulDB remains the best source for vulnerability data.

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: 9.5

VulDB Base Score: 9.8
VulDB Temp Score: 9.5
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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 900171
OpenVAS Name: Chilkat Crypt ActiveX Control ChilkatCrypt2.dll File Overwrite Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: chilkat_crypt_writefile.rb
MetaSploit Name: Chilkat Crypt ActiveX WriteFile Unsafe Method
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

11/03/2008 🔍
11/03/2008 +0 days 🔍
11/04/2008 +1 days 🔍
11/10/2008 +6 days 🔍
11/10/2008 +0 days 🔍
11/10/2008 +0 days 🔍
11/10/2008 +0 days 🔍
11/18/2008 +8 days 🔍
03/17/2015 +2310 days 🔍
05/25/2025 +3722 days 🔍

Sourcesinfo

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

CVE: CVE-2008-5002 (🔍)
GCVE (CVE): GCVE-0-2008-5002
GCVE (VulDB): GCVE-100-44948
X-Force: 46315
SecurityFocus: 32073 - Chilkat Crypt ActiveX Control 'ChilkatCrypt2.dll' Arbitrary File Overwrite Vulnerability
Secunia: 32513 - Chilkat Crypt ActiveX Control Two Insecure Methods, Highly Critical
OSVDB: 49510 - Chilkat - Crypt - ActiveX Control 'ChilkatCrypt2.dll' Arbitrary File Overwrite Issue
Vulnerability Center: 20036 - Chilkat Crypt ActiveX Component Vulnerability Allows Remote Attackers to Overwrite Arbitrary Files, Medium
Vupen: ADV-2008-2998

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

Entryinfo

Created: 03/17/2015 16:11
Updated: 05/25/2025 05:38
Changes: 03/17/2015 16:11 (79), 08/21/2019 07:30 (4), 11/10/2024 07:07 (21), 05/25/2025 05:38 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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