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View CSAF 1. EXECUTIVE SUMMARY CVSS v4 7.0 ATTENTION: Low Attack Complexity Vendor: Schneider Electric Equipment: EcoStruxure Power Automation System User Interface (EPAS-UI) Vulnerability: Improper Authentication 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to bypass device authentication, potentially gain access to sensitive information, or execute arbitrary code. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Schneider Electric reports that the following products are affected: EcoStruxure Power Automation System User Interface (EPAS-UI): Version v2.1 up to and including v2.9 3.2 VULNERABILITY OVERVIEW 3.2.1 IMPROPER AUTHENTICATION CWE-287 The Schneider Electric EcoStruxure Power Automation System User Interface (EPAS-UI) is vulnerable to authentication bypass. This occurs when an unauthorized user, without permission rights, has physical access to the EPAS-UI computer and is able to reboot the workstation and interrupt the normal boot process....
View CSAF 1. EXECUTIVE SUMMARY CVSS v4 8.7 ATTENTION: Exploitable remotely/low attack complexity Vendor: Schneider Electric Equipment: ASCO 5310 / 5350 Vulnerabilities: Download of Code Without Integrity Check, Allocation of Resources Without Limits or Throttling, Cleartext Transmission of Sensitive Information, Unrestricted Upload of File with Dangerous Type 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to perform a denial of service, loss of availability, or loss of device integrity. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Schneider Electric reports the following products are affected: Schneider Electric ASCO 5310 Single-Channel Remote Annunciator: All versions Schneider Electric ASCO 5350 Eight Channel Remote Annunciator: All versions 3.2 VULNERABILITY OVERVIEW 3.2.1 DOWNLOAD OF CODE WITHOUT INTEGRITY CHECK CWE-494 Schneider Electric ASCO 5310 / 5350 remote annunciator is vulnerable to a download of code without integrity check vulner...
The FBI has warned about free file converters that are up to no good and can lead to ransomware and identity theft.
A clever malware deployment scheme first spotted in targeted attacks last year has now gone mainstream. In this scam, dubbed "ClickFix," the visitor to a hacked or malicious website is asked to distinguish themselves from bots by pressing a combination of keyboard keys that causes Microsoft Windows to download password-stealing malware.
**Description:** The `secure_redundant_execution` function in feldman_vss.py attempts to mitigate fault injection attacks by executing a function multiple times and comparing results. However, several critical weaknesses exist: 1. Python's execution environment cannot guarantee true isolation between redundant executions 2. The constant-time comparison implementation in Python is subject to timing variations 3. The randomized execution order and timing provide insufficient protection against sophisticated fault attacks 4. The error handling may leak timing information about partial execution results These limitations make the protection ineffective against targeted fault injection attacks, especially from attackers with physical access to the hardware. **Impact:** A successful fault injection attack could allow an attacker to: 1. Bypass the redundancy check mechanisms 2. Extract secret polynomial coefficients during share generation or verification 3. Force the acceptance of inva...
**Description:** The `feldman_vss` library contains timing side-channel vulnerabilities in its matrix operations, specifically within the `_find_secure_pivot` function and potentially other parts of `_secure_matrix_solve`. These vulnerabilities are due to Python's execution model, which does not guarantee constant-time execution. An attacker with the ability to measure the execution time of these functions (e.g., through repeated calls with carefully crafted inputs) could potentially recover secret information used in the Verifiable Secret Sharing (VSS) scheme. The `_find_secure_pivot` function, used during Gaussian elimination in `_secure_matrix_solve`, attempts to find a non-zero pivot element. However, the conditional statement `if matrix[row][col] != 0 and row_random < min_value:` has execution time that depends on the value of `matrix[row][col]`. This timing difference can be exploited by an attacker. The `constant_time_compare` function in this file also does not provide a con...
FBI and CISA warn of Medusa ransomware attacks impacting critical infrastructure. Learn about Medusa’s tactics, prevention tips, and…
Cisco Talos’ Vulnerability Discovery & Research team recently disclosed a Miniaudio and three Adobe vulnerabilities. The vulnerabilities mentioned in this blog post have been patched by their respective vendors, all in adherence to Cisco’s third-party vulnerability disclosure policy. For Snort coverage
Thorsten picks apart some headlines, highlights Talos’ report on an unknown attacker predominantly targeting Japan, and asks, “Where is the victim, and does it matter?”
View CSAF 1. EXECUTIVE SUMMARY CVSS v4 6.8 ATTENTION: Low attack complexity Vendor: Schneider Electric Equipment: Uni-Telway Driver Vulnerability: Improper Input Validation 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to perform a denial of service. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Schneider Electric reports the following products are affected: Schneider Electric Uni-Telway Driver: All versions Schneider Electric Uni-Telway Driver installed on Control Expert: All versions Schneider Electric Uni-Telway Driver installed on Process Expert: All versions Schneider Electric Uni-Telway Driver installed on Process Expert for AVEVA System Platform: All versions Schneider Electric Uni-Telway Driver installed on OPC Factory Server: All versions 3.2 VULNERABILITY OVERVIEW 3.2.1 IMPROPER INPUT VALIDATION CWE-20 Schneider Electric Uni-Telway Driver is vulnerable to an improper input validation vulnerability that could cause denial-of-service of e...