The "XML Interface to Messaging, Scheduling, and Signaling" (XIMSS) protocol implementation in CommuniGate Pro (CGP) 6.2 suffers from a Missing XIMSS Protocol Validation attack that leads to an email spoofing attack, allowing a malicious authenticated attacker to send a message from any source email address. The attack uses an HTTP POST request to a /Session URI, and interchanges the XML From and To elements.

Cross-site scripting (XSS) vulnerability in the WebMail system in Stalker CommuniGate Pro 5.1.8 and earlier, when using Microsoft Internet Explorer, allows remote attackers to inject arbitrary web script or HTML via crafted STYLE tags.

Unspecified vulnerability in the POP service in Stalker CommuniGate Pro 5.1c1 and earlier allows remote attackers to cause a denial of service (server crash) via unspecified vectors involving opening an empty inbox.

CommuniGate Pro Core Server before 5.0.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via LDAP messages with negative BER lengths, and possibly other vectors, as demonstrated by the ProtoVer LDAP test suite.

Unknown vulnerability in the LIST functionality in CommuniGate Pro before 4.3c3 allows remote attackers to cause a denial of service (server crash) via certain multipart messages.

Multiple directory traversal vulnerabilities in LHA 1.14 allow remote attackers or local users to create arbitrary files via an LHA archive containing filenames with (1) .. sequences or (2) absolute pathnames with double leading slashes ("//absolute/path").

Multiple stack-based buffer overflows in the getheader function in header.c for LHA 1.14, as used in products such as Barracuda Spam Firewall, allow remote attackers or local users to execute arbitrary code via long directory or file names in an LHA archive, which triggers the overflow when testing or extracting the archive.

CommuniGate Pro 3.1 through 4.0.6 sends the session ID in the referer field for an HTTP request for an image, which allows remote attackers to hijack mail sessions via an e-mail with an IMG tag that references a malicious URL that captures the referer.

Directory traversal vulnerability in CommuniGate Pro 4.0b4 and possibly earlier versions allows remote attackers to list the contents of the WebUser directory and its parent directory via a (1) .. (dot dot) or (2) . (dot) in a URL. NOTE: it is not clear whether this issue reveals any more information regarding directory structure than is already available to any CommuniGate Pro user, although there is a possibility that it could be used to infer product version information.

POP3 daemon in Stalker CommuniGate Pro 3.3.2 generates different error messages for invalid usernames versus invalid passwords, which allows remote attackers to determine valid email addresses on the server for SPAM attacks.

The web administration interface for CommuniGate Pro 3.2.5 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) attack.

Buffer overflow in CommuniGatePro via a long string to the HTTP configuration port.

Stalker Internet Mail Server 1.6 allows a remote attacker to cause a denial of service (crash) via a long HELO command.