| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| A vulnerability in the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) code of Cisco ASA Software could allow an unauthenticated, remote attacker to cause a reload of the affected system. The vulnerability is due to improper parsing of crafted SSL or TLS packets. An attacker could exploit this vulnerability by sending a crafted packet to the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. A valid SSL or TLS session is needed to exploit this vulnerability. This vulnerability affects Cisco ASA Software running on the following products: Cisco ASA 1000V Cloud Firewall, Cisco ASA 5500 Series Adaptive Security Appliances, Cisco ASA 5500-X Series Next-Generation Firewalls, Cisco ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Firepower 9300 ASA Security Module, Cisco ISA 3000 Industrial Security Appliance. Fixed versions: 8.4(7.31) 9.0(4.39) 9.1(7) 9.2(4.6) 9.3(3.8) 9.4(2) 9.5(2). Cisco Bug IDs: CSCuv48243. |
| A vulnerability in the Border Gateway Protocol (BGP) Bidirectional Forwarding Detection (BFD) implementation of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to bypass the access control list (ACL) for specific TCP and UDP traffic. More Information: CSCvc68229. Known Affected Releases: 9.6(2). Known Fixed Releases: 99.1(20.1) 99.1(10.2) 98.1(12.7) 98.1(1.49) 97.1(6.58) 97.1(0.134) 96.2(0.109) 9.7(1.1) 9.6(2.99) 9.6(2.8). |
| A vulnerability in the TCP normalizer of Cisco Adaptive Security Appliance (ASA) Software (8.0 through 8.7 and 9.0 through 9.6) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause Cisco ASA and FTD to drop any further incoming traffic on all interfaces, resulting in a denial of service (DoS) condition. The vulnerability is due to improper limitation of the global out-of-order TCP queue for specific block sizes. An attacker could exploit this vulnerability by sending a large number of unique permitted TCP connections with out-of-order segments. An exploit could allow the attacker to exhaust available blocks in the global out-of-order TCP queue, causing the dropping of any further incoming traffic on all interfaces and resulting in a DoS condition. Cisco Bug IDs: CSCvb46321. |
| ASA 5515-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.4.x before 9.4.1 Interim, 9.2.x before 9.2.4 Interim, ASA 5510 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 8.4.x before 8.4.7 Interim, 8.2.x before 8.2.5 Interim, 9.1.x before 9.1.6 Interim, ASA 5555-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5512-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5520 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 8.2.x before 8.2.5 Interim, 8.4.x before 8.4.7 Interim, 9.1.x before 9.1.6 Interim, ASA 5505 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.2.x before 9.2.4 Interim, 8.4.x before 8.4.7 Interim, 9.1.x before 9.1.6 Interim, ASA 5525-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5512-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.4.x before 9.4.1 Interim, 9.2.x before 9.2.4 Interim or 9.2.4.SMP, 9.1.x before 9.1.6 Interim, ASA 5545-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5585-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5540 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 8.2.x before 8.2.5 Interim, 8.4.x before 8.4.7 Interim, 9.1.x before 9.1.6 Interim, ASA 5515-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5555-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.2.x before 9.2.4 Interim or 9.2.4.SMP, 9.4.x before 9.4.1 Interim, 9.1.x before 9.1.6 Interim, ASA 5580 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.1.x before 9.1.6 Interim, ASA 5585-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.2.x before 9.2.4 Interim, 9.4.x before 9.4.1 Interim, ASA 5525-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.4.x before 9.4.1 Interim, 9.2.x before 9.2.4 Interim or 9.2.4.SMP, 9.1.x before 9.1.6 Interim, ASA 5545-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.4.x before 9.4.1 Interim, 9.2.x before 9.2.4 Interim or 9.2.4.SMP. 9.1.x before 9.1.6 ASA does not check the source of the ARP request or GARP packets for addresses it performs NAT translation for under unspecified conditions. |
| Cisco IOS 12.0 through 15.6, Adaptive Security Appliance (ASA) Software 7.0.1 through 9.7.1.2, NX-OS 4.0 through 12.0, and IOS XE 3.6 through 3.18 are affected by a vulnerability involving the Open Shortest Path First (OSPF) Routing Protocol Link State Advertisement (LSA) database. This vulnerability could allow an unauthenticated, remote attacker to take full control of the OSPF Autonomous System (AS) domain routing table, allowing the attacker to intercept or black-hole traffic. The attacker could exploit this vulnerability by injecting crafted OSPF packets. Successful exploitation could cause the targeted router to flush its routing table and propagate the crafted OSPF LSA type 1 update throughout the OSPF AS domain. To exploit this vulnerability, an attacker must accurately determine certain parameters within the LSA database on the target router. This vulnerability can only be triggered by sending crafted unicast or multicast OSPF LSA type 1 packets. No other LSA type packets can trigger this vulnerability. OSPFv3 is not affected by this vulnerability. Fabric Shortest Path First (FSPF) protocol is not affected by this vulnerability. Cisco Bug IDs: CSCva74756, CSCve47393, CSCve47401. |
| A vulnerability in the IPsec code of Cisco ASA Software could allow an authenticated, remote attacker to cause a reload of the affected system. The vulnerability is due to improper parsing of malformed IPsec packets. An attacker could exploit this vulnerability by sending malformed IPsec packets to the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed firewall mode only and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. An attacker needs to establish a valid IPsec tunnel before exploiting this vulnerability. This vulnerability affects Cisco ASA Software running on the following products: Cisco ASA 1000V Cloud Firewall, Cisco ASA 5500 Series Adaptive Security Appliances, Cisco ASA 5500-X Series Next-Generation Firewalls, Cisco ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Firepower 9300 ASA Security Module, Cisco ISA 3000 Industrial Security Appliance. Fixed versions: 9.1(7.8) 9.2(4.15) 9.4(4) 9.5(3.2) 9.6(2). Cisco Bug IDs: CSCun16158. |
| A vulnerability in the web interface of the Cisco Adaptive Security Appliance (ASA) 9.3(3) and 9.6(2) could allow an unauthenticated, remote attacker to determine valid usernames. The attacker could use this information to conduct additional reconnaissance attacks. The vulnerability is due to the interaction between Lightweight Directory Access Protocol (LDAP) and SSL Connection Profile when they are configured together. An attacker could exploit the vulnerability by performing a username enumeration attack to the IP address of the device. An exploit could allow the attacker to determine valid usernames. Cisco Bug IDs: CSCvd47888. |
| A vulnerability in Common Internet Filesystem (CIFS) code in the Clientless SSL VPN functionality of Cisco ASA Software, Major Releases 9.0-9.6, could allow an authenticated, remote attacker to cause a heap overflow. The vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by sending a crafted URL to the affected system. An exploit could allow the remote attacker to cause a reload of the affected system or potentially execute code. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed firewall mode only and in single or multiple context mode. This vulnerability can be triggered by IPv4 or IPv6 traffic. A valid TCP connection is needed to perform the attack. The attacker needs to have valid credentials to log in to the Clientless SSL VPN portal. Vulnerable Cisco ASA Software running on the following products may be affected by this vulnerability: Cisco ASA 5500 Series Adaptive Security Appliances, Cisco ASA 5500-X Series Next-Generation Firewalls, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco ASA for Firepower 9300 Series, Cisco ASA for Firepower 4100 Series. Cisco Bug IDs: CSCvc23838. |
| The IKEv1 implementation in Cisco ASA Software 7.x, 8.0.x, 8.1.x, and 8.2.x before 8.2.2.13 allows remote authenticated users to bypass XAUTH authentication via crafted IKEv1 packets, aka Bug ID CSCus47259. |
| A vulnerability in the local Certificate Authority (CA) feature of Cisco ASA Software before 9.6(1.5) could allow an unauthenticated, remote attacker to cause a reload of the affected system. The vulnerability is due to improper handling of crafted packets during the enrollment operation. An attacker could exploit this vulnerability by sending a crafted enrollment request to the affected system. An exploit could allow the attacker to cause the reload of the affected system. Note: Only HTTPS packets directed to the Cisco ASA interface, where the local CA is allowing user enrollment, can be used to trigger this vulnerability. This vulnerability affects systems configured in routed firewall mode and in single or multiple context mode. |
| A vulnerability in the Identity Firewall feature of Cisco ASA Software before 9.6(2.1) could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to a buffer overflow in the affected code area. An attacker could exploit this vulnerability by sending a crafted NetBIOS packet in response to a NetBIOS probe sent by the ASA software. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or cause a reload of the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 traffic. |
| The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of service (device crash or error-recovery event) via an HTTP request that triggers a rewrite, aka Bug ID CSCug91577. |
| Cisco Adaptive Security Appliance (ASA) Software 8.4(.6) and earlier, when using an unsupported configuration with overlapping criteria for filtering and inspection, allows remote attackers to cause a denial of service (traffic loop and device crash) via a packet that triggers multiple matches, aka Bug ID CSCui45606. |
| The WebVPN CIFS implementation in Cisco Adaptive Security Appliance (ASA) Software 9.0(.4.1) and earlier allows remote CIFS servers to cause a denial of service (device reload) via a long share list, aka Bug ID CSCuj83344. |
| Cisco Adaptive Security Appliance (ASA) Software 8.2 before 8.2(5.47), 8.4 before 8.4(7.5), 8.7 before 8.7(1.11), 9.0 before 9.0(3.10), and 9.1 before 9.1(3.4) allows remote authenticated users to gain privileges by leveraging level-0 ASDM access, aka Bug ID CSCuj33496. |
| Cisco Adaptive Security Appliance (ASA) Software 8.x before 8.2(5.48), 8.3 before 8.3(2.40), 8.4 before 8.4(7.9), 8.6 before 8.6(1.13), 9.0 before 9.0(4.1), and 9.1 before 9.1(4.3) does not properly process management-session information during privilege validation for SSL VPN portal connections, which allows remote authenticated users to gain privileges by establishing a Clientless SSL VPN session and entering crafted URLs, aka Bug ID CSCul70099. |
| The SSL VPN implementation in Cisco Adaptive Security Appliance (ASA) Software 8.2 before 8.2(5.47, 8.3 before 8.3(2.40), 8.4 before 8.4(7.3), 8.6 before 8.6(1.13), 9.0 before 9.0(3.8), and 9.1 before 9.1(3.2) allows remote attackers to bypass authentication via (1) a crafted cookie value within modified HTTP POST data or (2) a crafted URL, aka Bug ID CSCua85555. |
| The SIP inspection engine in Cisco Adaptive Security Appliance (ASA) Software 8.2 before 8.2(5.48), 8.4 before 8.4(6.5), 9.0 before 9.0(3.1), and 9.1 before 9.1(2.5) allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted SIP packets, aka Bug ID CSCuh44052. |
| The WebVPN portal in Cisco Adaptive Security Appliance (ASA) Software 8.4(.7.15) and earlier allows remote authenticated users to obtain sensitive information via a crafted JavaScript file, aka Bug ID CSCui04520. |
| Memory leak in the SIP inspection engine in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to cause a denial of service (memory consumption and instability) via crafted SIP packets, aka Bug ID CSCuf67469. |
