CVSS: 9.0EPSS: 0%CPEs: 12EXPL: 3CVE-2021-42114 – Scalable Rowhammering In the Frequency Domain to Bypass TRR Mitigations On Modern DDR4/LPDDR4X Devices
https://notcve.org/view.php?id=CVE-2021-42114
Modern DRAM devices (PC-DDR4, LPDDR4X) are affected by a vulnerability in their internal Target Row Refresh (TRR) mitigation against Rowhammer attacks. Novel non-uniform Rowhammer access patterns, consisting of aggressors with different frequencies, phases, and amplitudes allow triggering bit flips on affected memory modules using our Blacksmith fuzzer. The patterns generated by Blacksmith were able to trigger bitflips on all 40 PC-DDR4 DRAM devices in our test pool, which cover the three major DRAM manufacturers: Samsung, SK Hynix, and Micron. This means that, even when chips advertised as Rowhammer-free are used, attackers may still be able to exploit Rowhammer. For example, this enables privilege-escalation attacks against the kernel or binaries such as the sudo binary, and also triggering bit flips in RSA-2048 keys (e.g., SSH keys) to gain cross-tenant virtual-machine access. • https://comsec.ethz.ch/research/dram/blacksmith https://comsec.ethz.ch/wp-content/files/blacksmith_sp22.pdf https://github.com/comsec-group/blacksmith • CWE-20: Improper Input Validation •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 2CVE-2021-41285
https://notcve.org/view.php?id=CVE-2021-41285
Ballistix MOD Utility through 2.0.2.5 is vulnerable to privilege escalation in the MODAPI.sys driver component. The vulnerability is triggered by sending a specific IOCTL request that allows low-privileged users to directly interact with physical memory via the MmMapIoSpace function call (mapping physical memory into a virtual address space). Attackers could exploit this issue to achieve local privilege escalation to NT AUTHORITY\SYSTEM. Ballistix MOD Utility versiones hasta 2.0.2.5, es vulnerable a una escalada de privilegios en el componente del controlador MODAPI.sys. La vulnerabilidad es desencadenada al enviar una petición IOCTL específica que permite a usuarios con pocos privilegios interactuar directamente con la memoria física por medio de la llamada a la función MmMapIoSpace (mapeo de la memoria física en un espacio de direcciones virtual). • https://github.com/VoidSec/Exploit-Development/blob/master/windows/x64/kernel/crucial_Ballistix_MOD_Utility_v.2.0.2.5/crucial_Ballistix_MOD_Utility_v.2.0.2.5_memory_dump_PoC.cpp https://voidsec.com/crucial-mod-utility-lpe-cve-2021-41285 •
CVSS: 9.3EPSS: 0%CPEs: 6EXPL: 0CVE-2020-10255
https://notcve.org/view.php?id=CVE-2020-10255
Modern DRAM chips (DDR4 and LPDDR4 after 2015) are affected by a vulnerability in deployment of internal mitigations against RowHammer attacks known as Target Row Refresh (TRR), aka the TRRespass issue. To exploit this vulnerability, the attacker needs to create certain access patterns to trigger bit flips on affected memory modules, aka a Many-sided RowHammer attack. This means that, even when chips advertised as RowHammer-free are used, attackers may still be able to conduct privilege-escalation attacks against the kernel, conduct privilege-escalation attacks against the Sudo binary, and achieve cross-tenant virtual-machine access by corrupting RSA keys. The issue affects chips produced by SK Hynix, Micron, and Samsung. NOTE: tracking DRAM supply-chain issues is not straightforward because a single product model from a single vendor may use DRAM chips from different manufacturers. • https://download.vusec.net/papers/trrespass_sp20.pdf https://github.com/vusec/trrespass https://thehackernews.com/2020/03/rowhammer-vulnerability-ddr4-dram.html https://twitter.com/antumbral/status/1237425959407513600 https://twitter.com/vu5ec/status/1237399112590467072 https://www.vusec.net/projects/trrespass • CWE-20: Improper Input Validation •
CVSS: 4.0EPSS: 0%CPEs: 14EXPL: 0CVE-2018-12037
https://notcve.org/view.php?id=CVE-2018-12037
An issue was discovered on Samsung 840 EVO and 850 EVO devices (only in "ATA high" mode, not vulnerable in "TCG" or "ATA max" mode), Samsung T3 and T5 portable drives, and Crucial MX100, MX200 and MX300 devices. Absence of a cryptographic link between the password and the Disk Encryption Key allows attackers with privileged access to SSD firmware full access to encrypted data. Se ha descubierto un problema en dispositivos Samsung 840 EVO y 850 EVO (solo en modo "ATA high"; no es vulnerable en los modos "TCG" o "ATA max"), los discos duros externos Samsung T3 y T5 y los dispositivos Crucial MX100, MX200 y MX300. La falta de un enlace criptográfico entre la contraseña y la clave de cifrado del disco permite que los atacantes con acceso privilegiado al firmware SSD tengan acceso total a los datos cifrados. • http://www.securityfocus.com/bid/105840 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV180028 https://security.netapp.com/advisory/ntap-20181112-0001 •