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CVE archive

August 2020

Browse CVE records published in August 2020, with severity, affected products, CWE, KEV, and source-backed vulnerability context.

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Showing 50 of 1514 matching CVEs · Page 3 of 31.

Medium · CVSS 4.7

CVE-2020-3466: Cisco DNA Center Cross-Site Scripting Vulnerabilities

Multiple vulnerabilities in the web-based management interface of Cisco DNA Center software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface of an affected device. The vulnerabilities exist because the web-based management interface on an affected device does not properly validate user-supplied input. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Published Aug 26, 2020 · Updated Nov 13, 2024

Critical · CVSS 9.8

CVE-2020-3446: Cisco vWAAS for Cisco ENCS 5400-W Series and CSP 5000-W Series Default Credentials Vulnerability

A vulnerability in Cisco Virtual Wide Area Application Services (vWAAS) with Cisco Enterprise NFV Infrastructure Software (NFVIS)-bundled images for Cisco ENCS 5400-W Series and CSP 5000-W Series appliances could allow an unauthenticated, remote attacker to log into the NFVIS CLI of an affected device by using accounts that have a default, static password. The vulnerability exists because the affected software has user accounts with default, static passwords. An attacker with access to the NFVIS CLI of an affected device could exploit this vulnerability by logging into the CLI. A successful exploit could allow the attacker to access the NFVIS CLI with administrator privileges.

Published Aug 26, 2020 · Updated Nov 13, 2024

High · CVSS 8.8

CVE-2020-3443: Cisco Smart Software Manager On-Prem Privilege Escalation Vulnerability

A vulnerability in Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges and execute commands with higher privileges. The vulnerability is due to insufficient authorization of the System Operator role capabilities. An attacker could exploit this vulnerability by logging in with the System Operator role, performing a series of actions, and then assuming a new higher privileged role. A successful exploit could allow the attacker to perform all actions associated with the privilege of the assumed role. If that role is an administrative role, the attacker would gain full access to the device.

Published Aug 26, 2020 · Updated Nov 13, 2024

Medium · CVSS 6.5

CVE-2020-3440: Cisco Webex Meetings Desktop App for Windows Arbitrary File Overwrite Vulnerability

A vulnerability in Cisco Webex Meetings Desktop App for Windows could allow an unauthenticated, remote attacker to overwrite arbitrary files on an end-user system. The vulnerability is due to improper validation of URL parameters that are sent from a website to the affected application. An attacker could exploit this vulnerability by persuading a user to follow a URL to a website that is designed to submit crafted input to the affected application. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system, possibly corrupting or deleting critical system files.

Published Aug 26, 2020 · Updated Nov 13, 2024

Medium · CVSS 5.9

CVE-2020-3439: Cisco Data Center Network Manager Stored Cross-Site Scripting Vulnerability

A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient input validation by the web-based management interface. An attacker could exploit this vulnerability by inserting malicious data into a specific data field in the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Published Aug 26, 2020 · Updated Nov 13, 2024

Medium · CVSS 4.4

CVE-2020-3389: Cisco Hyperflex HX-Series Software Weak Storage Vulnerability

A vulnerability in the installation component of Cisco Hyperflex HX-Series Software could allow an authenticated, local attacker to retrieve the password that was configured at installation on an affected device. The vulnerability exists because sensitive information is stored as clear text. An attacker could exploit this vulnerability by authenticating to an affected device and navigating to the directory that contains sensitive information. A successful exploit could allow the attacker to obtain sensitive information in clear text from the affected device.

Published Aug 26, 2020 · Updated Nov 13, 2024

Medium · CVSS 6.7

CVE-2020-3152: Cisco Connected Mobile Experiences Privilege Escalation Vulnerability

A vulnerability in Cisco Connected Mobile Experiences (CMX) could allow an authenticated, local attacker with administrative credentials to execute arbitrary commands with root privileges. The vulnerability is due to improper user permissions that are configured by default on an affected system. An attacker could exploit this vulnerability by sending crafted commands to the CLI. A successful exploit could allow the attacker to elevate privileges and execute arbitrary commands on the underlying operating system as root. To exploit this vulnerability, an attacker would need to have valid administrative credentials.

Published Aug 26, 2020 · Updated Nov 13, 2024

Medium · CVSS 5.1

CVE-2020-3151: Cisco Connected Mobile Experiences Restricted Shell Escape Vulnerability

A vulnerability in the CLI of Cisco Connected Mobile Experiences (CMX) could allow an authenticated, local attacker with administrative credentials to bypass restrictions on the CLI. The vulnerability is due to insufficient security mechanisms in the restricted shell implementation. An attacker could exploit this vulnerability by sending crafted commands to the CLI. A successful exploit could allow the attacker to escape the restricted shell and execute a set of normally unauthorized commands with the privileges of a non-root user. To exploit this vulnerability, an attacker would need to have valid administrative credentials.

Published Aug 26, 2020 · Updated Nov 13, 2024

Low · CVSS 3.3

CVE-2020-3504: Cisco UCS Manager Software Local Management CLI Denial of Service Vulnerability

A vulnerability in the local management (local-mgmt) CLI of Cisco UCS Manager Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of CLI command parameters. An attacker could exploit this vulnerability by executing specific commands on the local-mgmt CLI on an affected device. A successful exploit could allow the attacker to cause internal system processes to fail to terminate properly, which could result in a buildup of stuck processes and lead to slowness in accessing the UCS Manager CLI and web UI. A sustained attack may result in a restart of internal UCS Manager processes and a temporary loss of access to the UCS Manager CLI and web UI.

Published Aug 27, 2020 · Updated Nov 13, 2024

High · CVSS 7.2

CVE-2020-3454: Cisco NX-OS Software Call Home Command Injection Vulnerability

A vulnerability in the Call Home feature of Cisco NX-OS Software could allow an authenticated, remote attacker to inject arbitrary commands that could be executed with root privileges on the underlying operating system (OS). The vulnerability is due to insufficient input validation of specific Call Home configuration parameters when the software is configured for transport method HTTP. An attacker could exploit this vulnerability by modifying parameters within the Call Home configuration on an affected device. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the underlying OS.

Published Aug 27, 2020 · Updated Nov 13, 2024

High · CVSS 8.8

CVE-2020-3415: Cisco NX-OS Software Data Management Engine Remote Code Execution Vulnerability

A vulnerability in the Data Management Engine (DME) of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code with administrative privileges or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to a Layer 2-adjacent affected device. A successful exploit could allow the attacker to execute arbitrary code with administrative privileges or cause the Cisco Discovery Protocol process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition. Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). Exploitation of this vulnerability also requires jumbo frames to be enabled on the interface that receives the crafted Cisco Discovery Protocol packets on the affected device.

Published Aug 27, 2020 · Updated Nov 13, 2024

High · CVSS 8.6

CVE-2020-3398: Cisco NX-OS Software Border Gateway Protocol Multicast VPN Session Denial of Service Vulnerability

A vulnerability in the Border Gateway Protocol (BGP) Multicast VPN (MVPN) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a BGP session to repeatedly reset, causing a partial denial of service (DoS) condition due to the BGP session being down. The vulnerability is due to incorrect parsing of a specific type of BGP MVPN update message. An attacker could exploit this vulnerability by sending this BGP MVPN update message to a targeted device. A successful exploit could allow the attacker to cause the BGP peer connections to reset, which could lead to BGP route instability and impact traffic. The incoming BGP MVPN update message is valid but is parsed incorrectly by the NX-OS device, which could send a corrupted BGP update to the configured BGP peer. Note: The Cisco implementation of BGP accepts incoming BGP traffic from only explicitly configured peers. To exploit this vulnerability, an attacker must send a specific BGP MVPN update message over an established TCP connection that appears to come from a trusted BGP peer. To do so, the attacker must obtain information about the BGP peers in the trusted network of the affected system.

Published Aug 27, 2020 · Updated Nov 13, 2024

High · CVSS 8.6

CVE-2020-3397: Cisco NX-OS Software Border Gateway Protocol Multicast VPN Denial of Service Vulnerability

A vulnerability in the Border Gateway Protocol (BGP) Multicast VPN (MVPN) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an affected device to unexpectedly reload, resulting in a denial of service (DoS) condition. The vulnerability is due to incomplete input validation of a specific type of BGP MVPN update message. An attacker could exploit this vulnerability by sending this specific, valid BGP MVPN update message to a targeted device. A successful exploit could allow the attacker to cause one of the BGP-related routing applications to restart multiple times, leading to a system-level restart. Note: The Cisco implementation of BGP accepts incoming BGP traffic from only explicitly configured peers. To exploit this vulnerability, an attacker must send a specific BGP MVPN update message over an established TCP connection that appears to come from a trusted BGP peer. To do so, the attacker must obtain information about the BGP peers in the trusted network of the affected system.

Published Aug 27, 2020 · Updated Nov 13, 2024

High · CVSS 7.8

CVE-2020-3394: Cisco Nexus 3000 and 9000 Series Switches Privilege Escalation Vulnerability

A vulnerability in the Enable Secret feature of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an authenticated, local attacker to issue the enable command and get full administrative privileges. To exploit this vulnerability, the attacker would need to have valid credentials for the affected device. The vulnerability is due to a logic error in the implementation of the enable command. An attacker could exploit this vulnerability by logging in to the device and issuing the enable command. A successful exploit could allow the attacker to gain full administrative privileges without using the enable password. Note: The Enable Secret feature is disabled by default.

Published Aug 27, 2020 · Updated Nov 13, 2024

High · CVSS 7.5

CVE-2020-3338: Cisco NX-OS Software IPv6 Protocol Independent Multicast Denial of Service Vulnerability

A vulnerability in the Protocol Independent Multicast (PIM) feature for IPv6 networks (PIM6) of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper error handling when processing inbound PIM6 packets. An attacker could exploit this vulnerability by sending multiple crafted PIM6 packets to an affected device. A successful exploit could allow the attacker to cause the PIM6 application to leak system memory. Over time, this memory leak could cause the PIM6 application to stop processing legitimate PIM6 traffic, leading to a DoS condition on the affected device.

Published Aug 27, 2020 · Updated Nov 13, 2024

High · CVSS 8.6

CVE-2020-3517: Cisco FXOS and NX-OS Software Cisco Fabric Services Denial of Service Vulnerability

A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated attacker to cause process crashes, which could result in a denial of service (DoS) condition on an affected device. The attack vector is configuration dependent and could be remote or adjacent. For more information about the attack vector, see the Details section of this advisory. The vulnerability is due to insufficient error handling when the affected software parses Cisco Fabric Services messages. An attacker could exploit this vulnerability by sending malicious Cisco Fabric Services messages to an affected device. A successful exploit could allow the attacker to cause a reload of an affected device, which could result in a DoS condition.

Published Aug 27, 2020 · Updated Nov 13, 2024

Medium · CVSS 5.5

CVE-2020-22916: An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafte...

An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafted file. NOTE: the vendor disputes the claims of "endless output" and "denial of service" because decompression of the 17,486 bytes always results in 114,881,179 bytes, which is often a reasonable size increase.

Published Aug 22, 2023 · Updated Oct 29, 2024

Medium · CVSS 6.5

CVE-2020-26065: A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authe...

A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct path traversal attacks and obtain read access to sensitive files on an affected system. The vulnerability is due to insufficient validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to an affected system. A successful exploit could allow the attacker to view arbitrary files on the affected system.

Published Aug 4, 2023 · Updated Oct 9, 2024