Cisco Emergency Responder

Priv Escalation in Cisco Unified Comm via Local Auth on ESXi
CVE-2025-20112 5.1 - Medium - May 21, 2025

A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an authenticated, local attacker to elevate privileges to root on an affected device. This vulnerability is due to excessive permissions that have been assigned to system commands. An attacker could exploit this vulnerability by executing crafted commands on the underlying operating system. A successful exploit could allow the attacker to escape the restricted shell and gain root privileges on the underlying operating system of an affected device. To successfully exploit this vulnerability, an attacker would need administrative access to the ESXi hypervisor.

Privilege Chaining

CSRF Vulnerability in Cisco Emergency Responder Web UI
CVE-2024-20347 6.5 - Medium - April 03, 2024

A vulnerability in Cisco Emergency Responder could allow an unauthenticated, remote attacker to conduct a CSRF attack, which could allow the attacker to perform arbitrary actions on an affected device. This vulnerability is due to insufficient protections for the web UI of an affected system. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to perform arbitrary actions with the privilege level of the affected user, such as deleting users from the device.

Cisco ER Directory Traversal via Web UI
CVE-2024-20352 8.8 - High - April 03, 2024

A vulnerability in Cisco Emergency Responder could allow an authenticated, remote attacker to conduct a directory traversal attack, which could allow the attacker to perform arbitrary actions on an affected device. This vulnerability is due to insufficient protections for the web UI of an affected system. An attacker could exploit this vulnerability by sending crafted requests to the web UI. A successful exploit could allow the attacker to perform arbitrary actions with the privilege level of the affected user, such as accessing password or log files or uploading and deleting existing files from the system.

Directory traversal

Cisco ER: Unauthenticated Remote Login via Default Root Credentials
CVE-2023-20101 9.8 - Critical - October 04, 2023

A vulnerability in Cisco Emergency Responder could allow an unauthenticated, remote attacker to log in to an affected device using the root account, which has default, static credentials that cannot be changed or deleted. This vulnerability is due to the presence of static user credentials for the root account that are typically reserved for use during development. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and execute arbitrary commands as the root user.

Use of Hard-coded Credentials

Cisco Unified Communications API Improper Auth Causing High CPU DoS
CVE-2023-20259 7.5 - High - October 04, 2023

A vulnerability in an API endpoint of multiple Cisco Unified Communications Products could allow an unauthenticated, remote attacker to cause high CPU utilization, which could impact access to the web-based management interface and cause delays with call processing. This API is not used for device management and is unlikely to be used in normal operations of the device. This vulnerability is due to improper API authentication and incomplete validation of the API request. An attacker could exploit this vulnerability by sending a crafted HTTP request to a specific API on the device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition due to high CPU utilization, which could negatively impact user traffic and management access. When the attack stops, the device will recover without manual intervention.

Auth Remote Priv Escalation via Crafted Upgrade File in Cisco Unified CM
CVE-2023-20266 7.2 - High - August 30, 2023

A vulnerability in Cisco Emergency Responder, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an authenticated, remote attacker to elevate privileges to root on an affected device. This vulnerability exists because the application does not properly restrict the files that are being used for upgrades. An attacker could exploit this vulnerability by providing a crafted upgrade file. A successful exploit could allow the attacker to elevate privileges to root. To exploit this vulnerability, the attacker must have valid platform administrator credentials on an affected device.

Improper Privilege Management

Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2
CVE-2021-44228 10 - Critical - December 10, 2021

Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.

Marshaling, Unmarshaling

A vulnerability in the audit logging component of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, Cisco Unity Connection, Cisco Emergency Responder, and Cisco Prime License Manager could
CVE-2021-1226 4.3 - Medium - January 13, 2021

A vulnerability in the audit logging component of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, Cisco Unity Connection, Cisco Emergency Responder, and Cisco Prime License Manager could allow an authenticated, remote attacker to view sensitive information in clear text on an affected system. The vulnerability is due to the storage of certain unencrypted credentials. An attacker could exploit this vulnerability by accessing the audit logs on an affected system and obtaining credentials that they may not normally have access to. A successful exploit could allow the attacker to use those credentials to discover and manage network devices.

Insertion of Sensitive Information into Log File

A vulnerability in the web interface of Cisco Emergency Responder, Cisco Unified Communications Manager, Cisco Unified Communications Manager IM & Presence Service, and Cisco Unity Connection could
CVE-2018-15403 - October 05, 2018

A vulnerability in the web interface of Cisco Emergency Responder, Cisco Unified Communications Manager, Cisco Unified Communications Manager IM & Presence Service, and Cisco Unity Connection could allow an authenticated, remote attacker to redirect a user to a malicious web page. The vulnerability is due to improper input validation of the parameters of an HTTP request. An attacker could exploit this vulnerability by crafting an HTTP request that causes the web interface to redirect a request to a specific malicious URL. This type of vulnerability is known as an open redirect attack and is used in phishing attacks that get users to unknowingly visit malicious sites.

Open Redirect

Multiple Cisco products are affected by a vulnerability in local file management for certain system log files of Cisco collaboration products
CVE-2017-6779 - June 07, 2018

Multiple Cisco products are affected by a vulnerability in local file management for certain system log files of Cisco collaboration products that could allow an unauthenticated, remote attacker to cause high disk utilization, resulting in a denial of service (DoS) condition. The vulnerability occurs because a certain system log file does not have a maximum size restriction. Therefore, the file is allowed to consume the majority of available disk space on the appliance. An attacker could exploit this vulnerability by sending crafted remote connection requests to the appliance. Successful exploitation could allow the attacker to increase the size of a system log file so that it consumes most of the disk space. The lack of available disk space could lead to a DoS condition in which the application functions could operate abnormally, making the appliance unstable. This vulnerability affects the following Cisco Voice Operating System (VOS)-based products: Emergency Responder, Finesse, Hosted Collaboration Mediation Fulfillment, MediaSense, Prime License Manager, SocialMiner, Unified Communications Manager (UCM), Unified Communications Manager IM and Presence Service (IM&P - earlier releases were known as Cisco Unified Presence), Unified Communication Manager Session Management Edition (SME), Unified Contact Center Express (UCCx), Unified Intelligence Center (UIC), Unity Connection, Virtualized Voice Browser. This vulnerability also affects Prime Collaboration Assurance and Prime Collaboration Provisioning. Cisco Bug IDs: CSCvd10872, CSCvf64322, CSCvf64332, CSCvi29538, CSCvi29543, CSCvi29544, CSCvi29546, CSCvi29556, CSCvi29571, CSCvi31738, CSCvi31741, CSCvi31762, CSCvi31807, CSCvi31818, CSCvi31823.

Resource Management Errors