Kerio MailServer, Personal, and WinRoute Firewall administration port denial of service
| kerio-administration-port-dos (20337) |  Low Risk |
Description:
Kerio MailServer, Kerio Personal Firewall, and Kerio WinRoute Firewall are vulnerable to a denial of service attack. A remote attacker, with access to the administration ports, 44333, 44334, and 44337 could send specially-crafted data to exceed the amount of connections allowed, resulting in a denial of service.
Platforms Affected:
- Kerio, Kerio MailServer 6.0.8 and prior
- Kerio, Kerio Personal Firewall (KPF) 4.1.2 and prior
- Kerio, Kerio WinRoute Firewall 6.0.10 and prior
Remedy:
For Kerio MailServer:
Upgrade to the latest version of Kerio MailServer (6.0.9 or later), available from the Kerio MailServer Download Web page. See References.
For Kerio Personal Firewall:
Upgrade to the latest version of Kerio Personal Firewall (4.1.3 or later), available from the Kerio Personal Firewall Download Web page. See References.
For Kerio WinRoute Firewall:
Upgrade to the latest version of Kerio WinRoute Firewall (6.0.11 or later), available from the Kerio WinRoute Firewall Download Web page. See References.
Consequences:
Denial of Service
References:
- Kerio MailServer Download Web page, Download at http://www.kerio.com/kms_download.html.
- Kerio MailServer Download Web page, Download at http://www.kerio.com/kms_download.html.
- Kerio Personal Firewall Download Web page, Kerio Personal Firewall at http://www.kerio.com/kpf_download.html.
- Kerio WinRoute Firewall Download Web page, Download at http://www.kerio.com/kwf_download.html.
- Secure Computer Group #20050429-2, Administration protocol abuse leads to Administration protocol abuse leads to at http://research.tic.udc.es/scg/advisories/20050429-2.txt.
- BID-13458: Kerio Administration Port Denial of Service Vulnerability
- CVE-2005-1063: The administration protocol for Kerio WinRoute Firewall 6.x up to 6.0.10, Personal Firewall 4.x up to 4.1.2, and MailServer up to 6.0.8 allows remote attackers to cause a denial of service (CPU consumption) via certain attacks that force the product to compute unexpected conditions and perform cryptographic operations.
Reported:
Apr 29, 2005
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