CVSS: 8.8EPSS: 0%CPEs: 21EXPL: 0CVE-2020-7460 – FreeBSD Kernel sendmsg System Call Time-Of-Check Time-Of-Use Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-7460
In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation. En FreeBSD versiones 12.1-ESTABLE anteriores a r363918, versiones 12.1-RELEASE anteriores a p8, versiones 11.4-ESTABLE anteriores a r363919, versiones 11.4-RELEASE anteriores a p2 y versiones 11.3-RELEASE anteriores a p12, la llamada al sistema sendmsg en el subsistema compat32 en plataformas de 64 bits presenta una vulnerabilidad de tipo time-of-check to time-of-use permitiendo a un programa de espacio de usuario malicioso modificar encabezados de mensajes de control después de que fueron comprobados This vulnerability allows local attackers to escalate privileges on affected installations of FreeBSD Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of arguments to the sendmsg system call. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. • https://security.FreeBSD.org/advisories/FreeBSD-SA-20:23.sendmsg.asc https://security.netapp.com/advisory/ntap-20200821-0005 https://www.zerodayinitiative.com/advisories/ZDI-20-949 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •
CVSS: 9.8EPSS: 0%CPEs: 3EXPL: 0CVE-2020-7458
https://notcve.org/view.php?id=CVE-2020-7458
In FreeBSD 12.1-STABLE before r362281, 11.4-STABLE before r362281, and 11.4-RELEASE before p1, long values in the user-controlled PATH environment variable cause posix_spawnp to write beyond the end of the heap allocated stack possibly leading to arbitrary code execution. En FreeBSD versiones 12.1-STABLE anteriores a r362281, versiones 11.4-STABLE anteriores a r362281 y versiones 11.4-RELEASE anteriores a p1, los valores largos en la variable de entorno PATH controlada por el usuario causan que la función posix_spawnp escriba más allá del final de la región stack asignada a la región heap de la memoria, conllevando posiblemente a una ejecución de código arbitrario • https://security.FreeBSD.org/advisories/FreeBSD-SA-20:18.posix_spawnp.asc https://security.netapp.com/advisory/ntap-20200724-0002 • CWE-787: Out-of-bounds Write •
CVSS: 8.1EPSS: 39%CPEs: 21EXPL: 2CVE-2020-7457 – FreeBSD ip6_setpktopt Use-After-Free Privilege Escalation
https://notcve.org/view.php?id=CVE-2020-7457
In FreeBSD 12.1-STABLE before r359565, 12.1-RELEASE before p7, 11.4-STABLE before r362975, 11.4-RELEASE before p1, and 11.3-RELEASE before p11, missing synchronization in the IPV6_2292PKTOPTIONS socket option set handler contained a race condition allowing a malicious application to modify memory after being freed, possibly resulting in code execution. En FreeBSD versiones 12.1-ESTABLE anteriores a r359565, versiones 12.1-RELEASE anteriores a p7, versiones 11.4-ESTABLE anteriores a r362975, versiones 11.4-RELEASE anteriores a p1 y 11.3-RELEASE anteriores a p11, una falta de sincronización en el manejador del conjunto de opciones del socket IPV6_2292PKTOPTIONS contenía una condición de carrera que permitía una aplicación maliciosa para modificar la memoria después de ser liberada, resultando posiblemente en una ejecución de código • http://packetstormsecurity.com/files/158695/FreeBSD-ip6_setpktopt-Use-After-Free-Privilege-Escalation.html https://security.FreeBSD.org/advisories/FreeBSD-SA-20:20.ipv6.asc https://security.netapp.com/advisory/ntap-20200724-0002 https://hackerone.com/reports/826026 https://bsdsec.net/articles/freebsd-announce-freebsd-security-advisory-freebsd-sa-20-20-ipv6 https://www.freebsd.org/security/patches/SA-20:20/ipv6.patch https://github.com/freebsd/freebsd/blob/master/sys/netinet6/ip6_var.h https:/&# • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free CWE-662: Improper Synchronization •
CVSS: 7.2EPSS: 0%CPEs: 19EXPL: 0CVE-2020-7456
https://notcve.org/view.php?id=CVE-2020-7456
In FreeBSD 12.1-STABLE before r361918, 12.1-RELEASE before p6, 11.4-STABLE before r361919, 11.3-RELEASE before p10, and 11.4-RC2 before p1, an invalid memory location may be used for HID items if the push/pop level is not restored within the processing of that HID item allowing an attacker with physical access to a USB port to be able to use a specially crafted USB device to gain kernel or user-space code execution. En FreeBSD versión 12.1-ESTABLE versiones anteriores a r361918, 12.1-RELEASE versiones anteriores a p6, 11.4-ESTABLE versiones anteriores a r361919, 11.3-RELEASE versiones anteriores a p10 y 11.4-RC2 versiones anteriores a p1, puede ser usada una ubicación de memoria no comprobada para elementos HID si el nivel de inserción/extracción no es restaurado dentro del procesamiento de ese elemento HID, permitiendo que un atacante con acceso físico a un puerto USB pueda usar un dispositivo USB especialmente diseñado para conseguir una ejecución de código de kernel o del espacio de usuario • https://security.FreeBSD.org/advisories/FreeBSD-SA-20:17.usb.asc https://security.netapp.com/advisory/ntap-20200625-0005 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 9.8EPSS: 87%CPEs: 3EXPL: 5CVE-2020-13160 – AnyDesk GUI Format String Write
https://notcve.org/view.php?id=CVE-2020-13160
AnyDesk before 5.5.3 on Linux and FreeBSD has a format string vulnerability that can be exploited for remote code execution. AnyDesk versiones anteriores a 5.5.3 en Linux y FreeBSD presenta una vulnerabilidad de cadena de formato que puede ser explotada para una ejecución de código remota AnyDesk version 5.5.2 suffers from a remote code execution vulnerability. • https://www.exploit-db.com/exploits/49613 http://packetstormsecurity.com/files/158291/AnyDesk-GUI-Format-String-Write.html http://packetstormsecurity.com/files/161628/AnyDesk-5.5.2-Remote-Code-Execution.html https://devel0pment.de/?p=1881 https://download.anydesk.com/changelog.txt https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/misc/cve_2020_13160_anydesk.rb • CWE-134: Use of Externally-Controlled Format String •