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>> IPCop Web Backup Security Bypass and Squid Denial of Service Issues
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Title : IPCop Web Backup Security Bypass and Squid Denial of Service Issues
VUPEN ID : VUPEN/ADV-2005-2374
CVE ID : CVE-2005-3258
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2005-11-10
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Two vulnerabilities were identified in IPCop, which could be exploited by remote attackers to cause a denial of service, or by local attackers to decrypt or overwrite backup files.
The first flaw is due to an error in "ftp.c" when handling malformed FTP server responses, which could be exploited by remote attackers to crash Squid. For additional information, see : VUPEN/ADV-2005-2151
The second issue is due to a design error where the key used to encrypt backup files (stored in "/var/ipcop/backup/") is world-readable, which could be exploited by the "nobody" user to overwrite arbitrary files, or by malicious users to decrypt certain backup files.
Affected Products
IPCop versions prior to 1.4.10
Solution
Upgrade to IPCop version 1.4.10 :
http://sourceforge.net/projects/ipcop/
References
http://www.vupen.com/english/advisories/2005/2374
http://sourceforge.net/project/shownotes.php?release_id=369759
Credits
Vulnerabilities reported by the vendor and Juergen Schmidt
ChangeLog
2005-11-10 : Initial release
Vulnerability Management
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