
CVE-2018-0480 – Cisco IOS XE Software Errdisable Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2018-0480
05 Oct 2018 — A vulnerability in the errdisable per VLAN feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause the device to crash, leading to a denial of service (DoS) condition. The vulnerability is due to a race condition that occurs when the VLAN and port enter an errdisabled state, resulting in an incorrect state in the software. An attacker could exploit this vulnerability by sending frames that trigger the errdisable condition. A successful exploit could allow the attacker to ... • http://www.securityfocus.com/bid/105400 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVE-2018-0481 – Cisco IOS XE Software Command Injection Vulnerabilities
https://notcve.org/view.php?id=CVE-2018-0481
05 Oct 2018 — A vulnerability in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability exist because the affected software improperly sanitizes command arguments, failing to prevent access to certain internal data structures on an affected device. An attacker who has privileged EXEC mode (privilege level 15) access to an affected device could exploit these vulnerabilities on the d... • http://www.securitytracker.com/id/1041737 • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •

CVE-2018-15368 – Cisco IOS XE Software Privileged EXEC Mode Root Shell Access Vulnerability
https://notcve.org/view.php?id=CVE-2018-15368
05 Oct 2018 — A vulnerability in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to gain access to the underlying Linux shell of an affected device and execute arbitrary commands with root privileges on the device. The vulnerability is due to the affected software improperly sanitizing command arguments to prevent modifications to the underlying Linux filesystem on a device. An attacker who has privileged EXEC mode (privilege level 15) access to an affected device could exploit this v... • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-privesc • CWE-20: Improper Input Validation CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •

CVE-2018-15371 – Cisco IOS XE Software Shell Access Authentication Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2018-15371
05 Oct 2018 — A vulnerability in the shell access request mechanism of Cisco IOS XE Software could allow an authenticated, local attacker to bypass authentication and gain unrestricted access to the root shell of an affected device. The vulnerability exists because the affected software has insufficient authentication mechanisms for certain commands. An attacker could exploit this vulnerability by requesting access to the root shell of an affected device, after the shell access feature has been enabled. A successful expl... • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-shell-access • CWE-284: Improper Access Control CWE-287: Improper Authentication •

CVE-2018-15373 – Cisco IOS and IOS XE Software Cisco Discovery Protocol Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2018-15373
05 Oct 2018 — A vulnerability in the implementation of Cisco Discovery Protocol functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to exhaust memory on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper memory handling by the affected software when the software processes high rates of Cisco Discovery Protocol packets that are sent to a device. An attacker could exploit this vulnerability by sending a high ... • http://www.securityfocus.com/bid/105413 • CWE-399: Resource Management Errors CWE-770: Allocation of Resources Without Limits or Throttling •

CVE-2018-0131
https://notcve.org/view.php?id=CVE-2018-0131
14 Aug 2018 — A vulnerability in the implementation of RSA-encrypted nonces in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to obtain the encrypted nonces of an Internet Key Exchange Version 1 (IKEv1) session. The vulnerability exists because the affected software responds incorrectly to decryption failures. An attacker could exploit this vulnerability sending crafted ciphertexts to a device configured with IKEv1 that uses RSA-encrypted nonces. A successful exploit could al... • http://www.securityfocus.com/bid/105074 • CWE-326: Inadequate Encryption Strength •

CVE-2018-0257
https://notcve.org/view.php?id=CVE-2018-0257
19 Apr 2018 — A vulnerability in Cisco IOS XE Software running on Cisco cBR Series Converged Broadband Routers could allow an unauthenticated, adjacent attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the incorrect handling of certain DHCP packets. An attacker could exploit this vulnerability by sending certain DHCP packets to a specific segment of an affected device. A successful exploit could allow the attacker to increase CPU usage on... • http://www.securityfocus.com/bid/103948 • CWE-399: Resource Management Errors •

CVE-2018-0194
https://notcve.org/view.php?id=CVE-2018-0194
02 Apr 2018 — Multiple vulnerabilities in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to inject arbitrary commands into the CLI of the affected software, which could allow the attacker to gain access to the underlying Linux shell of an affected device and execute commands with root privileges on the device. The vulnerabilities exist because the affected software does not sufficiently sanitize command arguments before passing commands to the Linux shell for execution. An attacker c... • http://www.securityfocus.com/bid/103547 • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •

CVE-2018-0152
https://notcve.org/view.php?id=CVE-2018-0152
28 Mar 2018 — A vulnerability in the web-based user interface (web UI) of Cisco IOS XE Software could allow an authenticated, remote attacker to gain elevated privileges on an affected device. The vulnerability exists because the affected software does not reset the privilege level for each web UI session. An attacker who has valid credentials for an affected device could exploit this vulnerability by remotely accessing a VTY line to the device. A successful exploit could allow the attacker to access an affected device w... • http://www.securityfocus.com/bid/103558 • CWE-264: Permissions, Privileges, and Access Controls CWE-613: Insufficient Session Expiration •

CVE-2018-0155 – Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability
https://notcve.org/view.php?id=CVE-2018-0155
28 Mar 2018 — A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected swi... • http://www.securityfocus.com/bid/103565 • CWE-388: 7PK - Errors CWE-755: Improper Handling of Exceptional Conditions •