Cisco Service Provider, WebEx Bugs Offer Up Remote Code Execution

Cisco is warning of critical remote code-execution RCE vulnerabilities in the Cisco Prime Infrastructure PI and Evolved Programmable Network EPN Manager, which is used by telcos, mobile carriers, cable companies and ISPs to manage their hardware infrastructure. The vendor also issued estimated...

Cisco Trust Anchor module (TAm) improperly checks code and Cisco IOS XE web UI does not sanitize user input

Overview Cisco's Trust Anchor module TAm can be bypassed through manipulating the bitstream of the Field Programmable Gate Array FPGA. This component handles access control to a hardware component within Cisco's Secure Boot implementations, which affects multiple products that support this...

Pair of Cisco Bugs, One Unpatched, Affect Millions of Devices

Cisco has disclosed an unpatched, high-severity vulnerability that impacts millions of devices, in the logic that handles access control to one of the hardware components in Cisco’s proprietary Secure Boot implementation. Cisco has also disclosed a similarly widely-impacting high-severity bug tha...

CVE-2019-1649

A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot implementation could allow an authenticated, local attacker to write a modified firmware image to the component. This vulnerability affects multiple Cisco products that...

CVE-2019-1649

A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot implementation could allow an authenticated, local attacker to write a modified firmware image to the component. This vulnerability affects multiple Cisco products that...

Input validation

A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot implementation could allow an authenticated, local attacker to write a modified firmware image to the component. This vulnerability affects multiple Cisco products that...

CVE-2019-1649 Cisco Secure Boot Hardware Tampering Vulnerability

A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot implementation could allow an authenticated, local attacker to write a modified firmware image to the component. This vulnerability affects multiple Cisco products that...

CVE-2019-1649

CVE-2019-1649 concerns Cisco’s Secure Boot Trust Anchor module (TAm). The flaw stems from an improper check in the FPGA/ Trust Anchor bitstream handling, enabling an authenticated, local attacker with OS access to write a modified firmware image to the FPGA. Consequences include potential device ...

CVE-2019-1649 Cisco Secure Boot Hardware Tampering Vulnerability

A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot implementation could allow an authenticated, local attacker to write a modified firmware image to the component. This vulnerability affects multiple Cisco products that...

Cisco Secure Boot Hardware Tampering Vulnerability

A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot implementation could allow an authenticated, local attacker to write a modified firmware image to the component. This vulnerability affects multiple Cisco products that...

CVE-2018-18558

An issue was discovered in Espressif ESP-IDF 2.x and 3.x before 3.0.6 and 3.1.x before 3.1.1. Insufficient validation of input data in the 2nd stage bootloader allows a physically proximate attacker to bypass secure boot checks and execute arbitrary code, by crafting an application binary that...

CVE-2018-18558

An issue was discovered in Espressif ESP-IDF 2.x and 3.x before 3.0.6 and 3.1.x before 3.1.1. Insufficient validation of input data in the 2nd stage bootloader allows a physically proximate attacker to bypass secure boot checks and execute arbitrary code, by crafting an application binary that...

Input validation

An issue was discovered in Espressif ESP-IDF 2.x and 3.x before 3.0.6 and 3.1.x before 3.1.1. Insufficient validation of input data in the 2nd stage bootloader allows a physically proximate attacker to bypass secure boot checks and execute arbitrary code, by crafting an application binary that...

CVE-2018-18558

Affected software: Espressif ESP-IDF 2.x and 3.x before 3.0.6, and 3.1.x before 3.1.1. Root cause: Insufficient validation of input data in the 2nd stage bootloader (process_segment in components/bootloader_support/src/esp_image_format.c). Vulnerability allows a physically proximate attacker to b...

CVE-2018-18558

An issue was discovered in Espressif ESP-IDF 2.x and 3.x before 3.0.6 and 3.1.x before 3.1.1. Insufficient validation of input data in the 2nd stage bootloader allows a physically proximate attacker to bypass secure boot checks and execute arbitrary code, by crafting an application binary that...

PT-2019-2446 · Cisco · Cisco Secure Boot +1

Name of the Vulnerable Software and Affected Versions: Cisco products that support hardware-based Secure Boot functionality affected versions not specified Description: A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot...

Cisco Releases Security Updates

Cisco has released security updates to address vulnerabilities in multiple Cisco products. A remote attacker could exploit one of these vulnerabilities to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review th...

EfiGuard - Disable PatchGuard And DSE At Boot Time

EfiGuard is a portable x64 UEFI bootkit that patches the Windows boot manager, boot loader and kernel at boot time in order to disable PatchGuard and Driver Signature Enforcement DSE. Features Currently supports all EFI-compatible versions of Windows x64 ever released, from Vista SP1 to Server...

Buffer Overflow Vulnerability in Multiple IBM Products

The IBM Power System S922, among others, is a Power processor-based server device from IBM in the United States. A buffer overflow vulnerability exists in the boot loader in several IBM products. An attacker could exploit this vulnerability to overwrite the bootloader's instruction memory, bypass...

CVE-2018-1992

The IBM Power 9 OP910, OP920, and FW910 boot firmware's bootloader is responsible for loading and validating the initial boot firmware image that drives the rest of the system's hardware initialization. The bootloader firmware contains a buffer overflow vulnerability such that, if an attacker wer...