CVE-2023-20236

A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating...

Race condition

A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. This vulnerability is due to a time-of-check, time-of-use TOCTOU race condition when an install query regarding an ISO imag...

Improper access control

A vulnerability in the classic access control list ACL compression feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass the protection that is offered by a configured ACL on an affected device. This vulnerability is due to incorrect destination address range...

Design/Logic Flaw

A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating...

Design/Logic Flaw

A vulnerability in the access control list ACL processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to incomplete support for this feature. An attacker could exploit th...

CVE-2023-20190

A vulnerability in the classic access control list ACL compression feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass the protection that is offered by a configured ACL on an affected device. This vulnerability is due to incorrect destination address range...

CVE-2023-20191

Cisco IOS XR Software ACL bypass vulnerability (CVE-2023-20191) affects ACL processing on MPLS interfaces in the ingress direction. The issue arises from incomplete support for this feature, potentially allowing an unauthenticated, remote attacker to bypass a configured ACL by sending traffic thr...

CVE-2023-20191

A vulnerability in the access control list ACL processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to incomplete support for this feature. An attacker could exploit th...

CVE-2023-20233

Cisco IOS XR Software vulnerability CVE-2023-20233 affects the Connectivity Fault Management (CFM) feature. The issue arises from incorrect processing of invalid CCMs, allowing an unauthenticated, remote attacker to trigger a DoS by crashing the CFM service when attempting to display MEP informat...

CVE-2023-20236

Cisco IOS XR’s iPXE boot function is vulnerable to an image-verification bypass. An authenticated, local attacker could manipulate iPXE boot parameters to load an unverified/rogue image on the device due to insufficient image verification. Cisco has released software updates addressing this vulne...

CVE-2023-20236

A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating...

CVE-2023-20236

A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating...

CVE-2023-20135

A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. This vulnerability is due to a time-of-check, time-of-use TOCTOU race condition when an install query regarding an ISO imag...

CVE-2023-20135

Cisco IOS XR Software image verification checks contain a TOCTOU race condition during ISO image install queries, enabling an authenticated, local attacker to execute arbitrary code on the device. Affected component: image verification logic in IOS XR. Root cause: TOCTOU between ISO image modific...

CVE-2023-20135

A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. This vulnerability is due to a time-of-check, time-of-use TOCTOU race condition when an install query regarding an ISO imag...

Cisco IOS XR Software Image Verification Vulnerability

A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. This vulnerability is due to a time-of-check, time-of-use TOCTOU race condition when an install query regarding an ISO imag...

Cisco IOS XR Software Compression ACL Bypass Vulnerability

A vulnerability in the classic access control list ACL compression feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass the protection that is offered by a configured ACL on an affected device. This vulnerability is due to incorrect destination address range...

Cisco IOS XR Software Model-Driven Programmability Behavior with AAA Authorization

Cisco IOS XR Software supports a programmatic way of configuring and collecting operational data on a network device using data models. Data models provide access to the capabilities of the devices in a network using NETCONF or gRPC. According to Cisco IOS XR Software configuration guides, if...

Cisco IOS XR Data Forgery Issue Vulnerability

Cisco IOS XR is an operating system developed by Cisco for its network devices. A security vulnerability exists in Cisco IOS XR, which originates from a security hole in the iPXE boot feature that can be exploited by an authenticated attacker to install an unauthenticated software image on an...

PT-2023-5460 · Cisco · Cisco Ios Xr

Name of the Vulnerable Software and Affected Versions: Cisco IOS XR Software affected versions not specified Description: A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system...