CVSS: 9.3EPSS: 0%CPEs: 13EXPL: 0CVE-2021-3621 – sssd: shell command injection in sssctl
https://notcve.org/view.php?id=CVE-2021-3621
A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se encontró un fallo en SSSD, donde el comando sssctl era vulnerable a la inyección de comandos de shell por medio de los subcomandos logs-fetch y cache-expire. Este fallo permite a un atacante engañar al usuario root para que ejecute un comando sssctl especialmente diseñado, por ejemplo por medio de sudo, para conseguir acceso de root. • https://bugzilla.redhat.com/show_bug.cgi?id=1975142 https://lists.debian.org/debian-lts-announce/2023/05/msg00028.html https://sssd.io/release-notes/sssd-2.6.0.html https://access.redhat.com/security/cve/CVE-2021-3621 • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •
CVSS: 6.8EPSS: 0%CPEs: 35EXPL: 1CVE-2021-3672 – c-ares: Missing input validation of host names may lead to domain hijacking
https://notcve.org/view.php?id=CVE-2021-3672
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability. Se ha encontrado un fallo en la biblioteca c-ares, en la que una falta de comprobación de la comprobación de entrada de los nombres de host devueltos por los DNS (Servidores de Nombres de Dominio) puede conllevar a una salida de nombres de host erróneos, que podría conllevar potencialmente a un Secuestro de Dominios. La mayor amenaza de esta vulnerabilidad es para la confidencialidad e integridad, así como para la disponibilidad del sistema • https://bugzilla.redhat.com/show_bug.cgi?id=1988342 https://c-ares.haxx.se/adv_20210810.html https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://security.gentoo.org/glsa/202401-02 https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2021-3672 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 7.0EPSS: 0%CPEs: 68EXPL: 1CVE-2021-3609 – kernel: race condition in net/can/bcm.c leads to local privilege escalation
https://notcve.org/view.php?id=CVE-2021-3609
.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root. Se ha encontrado un fallo en el protocolo de red CAN BCM en el kernel de Linux, donde un atacante local puede abusar de un fallo en el subsistema CAN para corromper la memoria, bloquear el sistema o escalar privilegios. Esta condición de carrera en el archivo net/can/bcm.c en el kernel de Linux permite una escalada de privilegios local a root A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. • https://bugzilla.redhat.com/show_bug.cgi?id=1971651 https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463 https://security.netapp.com/advisory/ntap-20220419-0004 https://www.openwall.com/lists/oss-security/2021/06/19/1 https://access.redhat.com/security/cve/CVE-2021-3609 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.6EPSS: 0%CPEs: 20EXPL: 0CVE-2020-25647 – grub2: Out-of-bounds write in grub_usb_device_initialize()
https://notcve.org/view.php?id=CVE-2020-25647
A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06. • https://bugzilla.redhat.com/show_bug.cgi?id=1886936 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R https://security.gentoo.org/glsa/202104-05 https://security.netapp.com/advisory/ntap-20220325-0001 https://access.redhat.com/security/cve/CVE-2020-25647 • CWE-787: Out-of-bounds Write •
CVSS: 7.5EPSS: 0%CPEs: 21EXPL: 1CVE-2020-14372 – grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled
https://notcve.org/view.php?id=CVE-2020-14372
A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown variable content directly into memory. The table is further loaded and executed by the kernel, defeating its Secure Boot lockdown and allowing the attacker to load unsigned code. The highest threat from this vulnerability is to data confidentiality and integrity, as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06, donde habilita incorrectamente el uso del comando ACPI cuando Secure Boot está habilitado. • https://github.com/kukrimate/CVE-2020-14372 https://access.redhat.com/security/vulnerabilities/RHSB-2021-003 https://bugzilla.redhat.com/show_bug.cgi?id=1873150 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R https://security.gentoo.org/glsa/202104-05 https://security.netapp.com/advisory/ntap-20210416-0004 https://access.redhat.com/security/cve/CVE-2020-14372 • CWE-184: Incomplete List of Disallowed Inputs •