CVE-2008-4584

Chilkat Mail 7.8 - Arbitrary File Write via SaveLastError Method

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2008-4584. PoCs published by callAX, darkl0rd.

AI-analyzed exploit summary This exploit leverages an arbitrary file creation vulnerability in ChilkatFTP.dll v3.0.0.2 via the SaveLastError method of the ChilkatSocket ActiveX control. It allows an attacker to write arbitrary data to a specified file path (e.g., c:\boot_.ini) when a user clicks a button on a malicious webpage.

Description

Insecure method vulnerability in Chilkat Mail 7.8 ActiveX control (ChilkatCert.dll) allows remote attackers to overwrite arbitrary files via a full pathname to the SaveLastError method.

Exploits (2)

exploitdb WORKING POC VERIFIED
by callAX · htmlremotewindows
https://www.exploit-db.com/exploits/7594

This exploit leverages an arbitrary file creation vulnerability in ChilkatFTP.dll v3.0.0.2 via the SaveLastError method of the ChilkatSocket ActiveX control. It allows an attacker to write arbitrary data to a specified file path (e.g., c:\boot_.ini) when a user clicks a button on a malicious webpage.

Classification
Working Poc 95%
Attack Type
Other
Complexity
Trivial
Reliability
Reliable
Target: ChilkatFTP.dll v3.0.0.2
No auth needed
Prerequisites: Victim must visit a malicious webpage · ChilkatFTP.dll v3.0.0.2 must be installed
devstral-2 · analyzed Feb 18, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by darkl0rd · htmlremotewindows
https://www.exploit-db.com/exploits/5005

This exploit leverages an insecure method in Chilkat Mail ActiveX (ChilkatCert.dll) to write arbitrary files to the filesystem via the SaveLastError method. It is triggered by a VBScript onclick event in an HTML page, demonstrating a classic ActiveX exploitation technique.

Classification
Working Poc 90%
Attack Type
Other
Complexity
Trivial
Reliability
Reliable
Target: Chilkat Mail ActiveX 7.8 (ChilkatCert.dll)
No auth needed
Prerequisites: Victim must open the HTML file in Internet Explorer with ActiveX enabled · Chilkat Mail ActiveX 7.8 must be installed
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/4424
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/27493
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/5005
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/40041

Scores

EPSS 0.0472
EPSS Percentile 90.7%

Details

Status published
Products (1)
chilkat_software/mail 7.8
Published Oct 15, 2008
Tracked Since Feb 18, 2026