An issue was discovered in Suricata before 3.1.2. If an ICMPv4 error packet is received as the first packet on a flow in the to_client direction, it confuses the rule grouping lookup logic. The toclient inspection will then continue with the wrong rule group. This can lead to missed detection.
Cisco VPN 5000 series concentrator hardware 6.0.21.0002 and earlier, and 5.2.23.0003 and earlier, when using RADIUS with a challenge type of Password Authentication Protocol (PAP) or Challenge, sends the user password in cleartext in a validation retry request, which could allow remote attackers to steal passwords via sniffing.
IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a «DCC SEND» request to a malicious server which listens on port 6667, which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.
Linux kernel 2.2.1 through 2.2.19, and 2.4.1 through 2.4.10, allows local users to cause a denial of service via a series of deeply nested symlinks, which causes the kernel to spend extra time when trying to access the link.
dnskeygen in BIND 8.2.4 and earlier, and dnssec-keygen in BIND 9.1.2 and earlier, set insecure permissions for a HMAC-MD5 shared secret key file used for DNS Transactional Signatures (TSIG), which allows attackers to obtain the keys and perform dynamic DNS updates.
Java Runtime Environment in Java Development Kit (JDK) 1.2.2_05 and earlier can allow an untrusted Java class to call into a disallowed class, which could allow an attacker to escape the Java sandbox and conduct unauthorized activities.
Dropbear SSH Server before 2013.59 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to discover valid usernames.
The buf_decompress function in packet.c in Dropbear SSH Server before 2013.59 allows remote attackers to cause a denial of service (memory consumption) via a compressed packet that has a large size when it is decompressed.
Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to «channels concurrency.»
Buffer overflow in Dropbear server before 0.47 allows authenticated users to execute arbitrary code via unspecified inputs that cause insufficient memory to be allocated due to an incorrect expression that does not enforce the proper order of operations.
The DSS verification code in Dropbear SSH Server before 0.43 frees uninitialized variables, which might allow remote attackers to gain access.
A vulnerability in the vManage dashboard for the configuration and management service of the Cisco SD-WAN Solution could allow an authenticated, remote attacker to inject and execute arbitrary commands with vmanage user privileges on an affected system. The vulnerability is due to insufficient input validation of data parameters for certain fields in the affected solution. An attacker could exploit this vulnerability by configuring a malicious username on the login page of the affected solution. A successful exploit could allow the attacker to inject and execute arbitrary commands with vmanage user privileges on an affected system. This vulnerability affects the following Cisco products if they are running a release of the Cisco SD-WAN Solution prior to Release 18.3.0: vBond Orchestrator Software, vEdge 100 Series Routers, vEdge 1000 Series Routers, vEdge 2000 Series Routers, vEdge 5000 Series Routers, vEdge Cloud Router Platform, vManage Network Management Software, vSmart Controller Software. Cisco Bug IDs: CSCvi69974.
A vulnerability in the web-based UI of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware before 11.2(1) could allow an authenticated, remote attacker to perform a command injection and execute commands with the privileges of the web server. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including arbitrary shell commands in a specific user input field. Cisco Bug IDs: CSCvi51426.
An exploitable buffer overflow vulnerability exists in the UPnP implementation used by the Foscam C1 Indoor HD Camera running application firmware 220.127.116.11. A specially crafted UPnP discovery response can cause a buffer overflow resulting in overwriting arbitrary data. An attacker needs to be in the same subnetwork and reply to a discovery message to trigger this vulnerability.
An exploitable buffer overflow vulnerability exists in the web management interface used by the Foscam C1 Indoor HD Camera running application firmware 18.104.22.168. A specially crafted HTTP request can cause a buffer overflow resulting in overwriting arbitrary data. An attacker can simply send an HTTP request to the device to trigger this vulnerability.