CERT has told us of an authentication bypass flaw in Net-SNMP and UCD-SNMP.
According to net-snmp:
"The quick technical summary is that the SNMPv3 packet contains a truncated HMAC authentication code. The author that wrote the code very very long ago to check that HMAC code used the length of the packet's version of the HMAC code to do the check. Thus if you send a single byte HMAC code, it'll only check it against the first byte of HMAC output. Thus it's fairly easy to spoof an authenticated SNMPv3 packet."
The IPsec module in the VPN component in Ingate Firewall before 4.6.0 and SIParator before 4.6.0 allows remote attackers to cause a denial of service (module crash) via an IPsec Phase 2 proposal that lacks Perfect Forward Secrecy (PFS).
Buffer overflow in libsrtp in Ingate Firewall before 4.6.0 and SIParator before 4.6.0 has unknown impact and attack vectors. NOTE: it is not clear whether this issue crosses privilege boundaries.
Ingate Firewall before 4.6.0 and SIParator before 4.6.0 do not log truncated (1) ICMP, (2) UDP, and (3) TCP packets, which has unknown impact and remote attack vectors; and do not log (4) serial-console login attempts with nonexistent usernames, which might make it easier for attackers with physical access to guess valid login credentials while avoiding detection.
Ingate Firewall before 4.6.0 and SIParator before 4.6.0 use cleartext storage for passwords of "administrators with less privileges," which might allow attackers to read these passwords via unknown vectors.
Unspecified vulnerability in the ICMP implementation in Ingate Firewall before 4.6.0 and SIParator before 4.6.0 has unknown impact and remote attack vectors, related to ICMP packets that are "incorrectly accepted."
The SRTP implementation in Ingate Firewall before 4.6.0 and SIParator before 4.6.0 allows remote attackers to cause a denial of service (kernel crash) via an RTCP index that is "much more than expected."
The SIP component in Ingate Firewall before 4.6.0 and SIParator before 4.6.0, when Remote NAT Traversal is employed, does not properly perform user registration and message distribution, which might allow remote authenticated users to receive messages intended for other users.
Ingate Firewall and SIParator before 4.5.2 allow remote attackers to bypass SIP authentication via a certain maddr parameter.
Unspecified vulnerability in Ingate Firewall and SIParator before 4.5.2 allows remote authenticated users without full privileges to download a Support Report.
Ingate Firewall in the SIP module before 4.4.1 and SIParator before 4.4.1, when TLS is enabled or when SSL/TLS is enabled in the web server, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake.
Cross-site scripting (XSS) vulnerability in the web interface in Ingate Firewall before 4.4.1 and SIParator before 4.4.1 allows remote attackers to inject arbitrary web script or HTML, and steal cookies, via unspecified vectors related to "XSS exploits" in administrator functionality.
Ingate Firewall before 4.3.4 and SIParator before 4.3.4 allows remote attackers to cause a denial of service (kernel deadlock) by sending a SYN packet for a TCP stream, which requires an RST packet in response.
Ingate Firewall 4.1.3 and earlier does not terminate the PPTP session for an active user when the administrator disables that user from a resource, which could allow remote authenticated users to retain unauthorized access to resources.
The Session Initiation Protocol (SIP) implementation in Ingate Firewall and Ingate SIParator before 3.1.3 allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted INVITE messages, as demonstrated by the OUSPG PROTOS c07-sip test suite.