Cisco Systems VPN Client IPSec Driver (CVPNDRVA.sys) 5.0.02.0090 allows local users to cause a denial of service (crash) by calling the 0x80002038 IOCTL with a small size value, which triggers memory corruption.

Unspecified vulnerability in the LDAP authentication feature in Aruba Mobility Controller 2.3.6.15, 2.5.2.11, 2.5.4.25, 2.5.5.7, 3.1.1.3, and 2.4.8.11-FIPS or earlier allows remote attackers to bypass authentication mechanisms and obtain management or VPN interface access.

Multiple format string vulnerabilities in the configuration file in SonicWALL GLobal VPN Client 3.1.556 and 4.0.0.810 allow user-assisted remote attackers to execute arbitrary code via format string specifiers in the (1) Hostname tag or the (2) name attribute in the Connection tag. NOTE: there might not be any realistic circumstances in which this issue crosses privilege boundaries.

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).

Cross-site scripting (XSS) vulnerability in download_plugin.php3 in F5 Firepass 4100 SSL VPN 5.4 through 5.5.2 and 6.0 through 6.0.1 allows remote attackers to inject arbitrary web script or HTML via the backurl parameter.

Cross-site scripting (XSS) vulnerability in cgi-bin/welcome (aka the login page) in Netgear SSL312 PROSAFE SSL VPN-Concentrator 25 allows remote attackers to inject arbitrary web script or HTML via the err parameter in the context of an error page.

Cisco VPN Client on Windows before 4.8.02.0010 allows local users to gain privileges by enabling the "Start Before Logon" (SBL) and Microsoft Dial-Up Networking options, and then interacting with the dial-up networking dialog box.

Cisco VPN Client on Windows before 5.0.01.0600, and the 5.0.01.0600 InstallShield (IS) release, uses weak permissions for cvpnd.exe (Modify granted to Interactive Users), which allows local users to gain privileges via a modified cvpnd.exe.

The login interface in Symantec Enterprise Firewall 6.x, when a VPN with pre-shared key (PSK) authentication is enabled, generates different responses depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames.

Cross-site request forgery (CSRF) vulnerability in pop/WizU.html in the management interface in Check Point VPN-1 Edge X Embedded NGX 7.0.33x on the Check Point VPN-1 UTM Edge allows remote attackers to perform privileged actions as administrators, as demonstrated by a request with the swuuser and swupass parameters, which adds an administrator account. NOTE: the CSRF attack has no timing window because there is no logout capability in the management interface.

my.activation.php3 in F5 FirePass 4100 SSL VPN allows remote attackers to execute arbitrary shell commands via shell metacharacters in the username parameter.

Format string vulnerability in the VPN daemon (vpnd) in Apple Mac OS X 10.3.9 and 10.4.9 allows local users to execute arbitrary code via the -i parameter.

Unspecified vulnerability in Cisco Adaptive Security Appliance (ASA) and PIX 7.1 before 7.1(2)49 and 7.2 before 7.2(2)17 allows remote attackers to cause a denial of service (device reload) via unknown vectors related to VPN connection termination and password expiry.

Race condition in Cisco Adaptive Security Appliance (ASA) and PIX 7.1 before 7.1(2)49 and 7.2 before 7.2(2)19, when using "clientless SSL VPNs," allows remote attackers to cause a denial of service (device reload) via "non-standard SSL sessions."

Nortel VPN Router (aka Contivity) 1000, 2000, 4000, and 5000 before 6_05.140 uses a fixed DES key to encrypt passwords, which allows remote authenticated users to obtain a password via a brute force attack on a hash from the LDAP store.

Nortel VPN Router (aka Contivity) 1000, 2000, 4000, and 5000 before 5_05.149, 5_05.3xx before 5_05.304, and 6.x before 6_05.140 includes the FIPSecryptedtest1219 and FIPSunecryptedtest1219 default accounts in the LDAP template, which might allow remote attackers to access the private network.

Nortel VPN Router (aka Contivity) 1000, 2000, 4000, and 5000 before 5_05.149, 5_05.3xx before 5_05.304, and 6.x before 6_05.140 has two template HTML files lacking certain verification tags, which allows remote attackers to access the administration interface and change the device configuration via certain requests.

Multiple cross-site scripting (XSS) vulnerabilities in (1) PreSearch.html and (2) PreSearch.class in Cisco Secure Access Control Server (ACS), VPN Client, Unified Personal Communicator, MeetingPlace, Unified MeetingPlace, Unified MeetingPlace Express, CallManager, IP Communicator, Unified Video Advantage, Unified Videoconferencing 35xx products, Unified Videoconferencing Manager, WAN Manager, Security Device Manager, Network Analysis Module (NAM), CiscoWorks and related products, Wireless LAN Solution Engine (WLSE), 2006 Wireless LAN Controllers (WLC), and Wireless Control System (WCS) allow remote attackers to inject arbitrary web script or HTML via the text field of the search form.

Novell Access Management 3 SSLVPN Server allows remote authenticated users to bypass VPN restrictions by making policy.txt read-only, disconnecting, then manually modifying policy.txt.

The Net Direct client for Linux before 6.0.5 in Nortel Application Switch 2424, VPN 3050 and 3070, and SSL VPN Module 1000 extracts and executes files with insecure permissions, which allows local users to exploit a race condition to replace a world-writable file in /tmp/NetClient and cause another user to execute arbitrary code when attempting to execute this client, as demonstrated by replacing /tmp/NetClient/client.