CVE-2020-10713

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1825243

https://www.kb.cert.org/vuls/id/174059

https://security.netapp.com/advisory/ntap-20200731-0008/

https://usn.ubuntu.com/4432-1/

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-grub2-code-exec-xLePCAPY

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html

https://eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/

http://www.openwall.com/lists/oss-security/2020/07/29/3

https://www.debian.org/security/2020/dsa-4735

https://kb.vmware.com/s/article/80181

https://cve.openeuler.org/#/CVEInfo/CVE-2020-10713

https://security.gentoo.org/glsa/202104-05

Details

Source: MITRE

Published: 2020-07-30

Updated: 2021-05-01

Type: CWE-120

Risk Information

CVSS v2

Base Score: 4.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 8.2

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Impact Score: 6

Exploitability Score: 1.5

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*

Tenable Plugins

View all (47 total)

IDNameProductFamilySeverity
150632SUSE SLES11 Security Update : grub2 (SUSE-SU-2020:14440-1)NessusSuSE Local Security Checks
medium
150569SUSE SLES11 Security Update : shim (SUSE-SU-2020:14490-1)NessusSuSE Local Security Checks
high
149217GLSA-202104-05 : GRUB: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
147445EulerOS Virtualization 2.9.1 : grub2 (EulerOS-SA-2021-1601)NessusHuawei Local Security Checks
medium
147391NewStart CGSL CORE 5.04 / MAIN 5.04 : fwupdate Vulnerability (NS-SA-2021-0007)NessusNewStart CGSL Local Security Checks
high
147322NewStart CGSL CORE 5.04 / MAIN 5.04 : shim Vulnerability (NS-SA-2021-0009)NessusNewStart CGSL Local Security Checks
high
147274NewStart CGSL CORE 5.04 / MAIN 5.04 : grub2 Multiple Vulnerabilities (NS-SA-2021-0008)NessusNewStart CGSL Local Security Checks
medium
146030CentOS 8 : grub2 (CESA-2020:3216)NessusCentOS Local Security Checks
medium
143790SUSE SLES12 Security Update : shim (SUSE-SU-2020:2627-1)NessusSuSE Local Security Checks
high
143746SUSE SLED15 / SLES15 Security Update : shim (SUSE-SU-2020:2629-1)NessusSuSE Local Security Checks
high
143634SUSE SLES12 Security Update : shim (SUSE-SU-2020:2628-1)NessusSuSE Local Security Checks
high
142544EulerOS Virtualization 3.0.6.6 : grub2 (EulerOS-SA-2020-2462)NessusHuawei Local Security Checks
high
141377EulerOS Virtualization 3.0.2.2 : grub2 (EulerOS-SA-2020-2184)NessusHuawei Local Security Checks
high
141175RHEL 8 : Red Hat Virtualization (RHSA-2020:4172)NessusRed Hat Local Security Checks
high
141087RHEL 7 : redhat-release-virtualization-host and redhat-virtualization-host (RHSA-2020:4115)NessusRed Hat Local Security Checks
high
140335EulerOS Virtualization for ARM 64 3.0.2.0 : grub2 (EulerOS-SA-2020-1965)NessusHuawei Local Security Checks
high
140167EulerOS 2.0 SP5 : grub2 (EulerOS-SA-2020-1946)NessusHuawei Local Security Checks
high
139994EulerOS Virtualization for ARM 64 3.0.6.0 : grub2 (EulerOS-SA-2020-1891)NessusHuawei Local Security Checks
high
139743EulerOS 2.0 SP3 : grub2 (EulerOS-SA-2020-1834)NessusHuawei Local Security Checks
high
139742EulerOS 2.0 SP2 : grub2 (EulerOS-SA-2020-1833)NessusHuawei Local Security Checks
high
139741EulerOS 2.0 SP8 : grub2 (EulerOS-SA-2020-1832)NessusHuawei Local Security Checks
high
139449openSUSE Security Update : grub2 (openSUSE-2020-1169)NessusSuSE Local Security Checks
medium
139448openSUSE Security Update : grub2 (openSUSE-2020-1168)NessusSuSE Local Security Checks
medium
139365Ubuntu 16.04 LTS / 18.04 LTS / 20.04 : GRUB2 regression (USN-4432-2)NessusUbuntu Local Security Checks
medium
139294RHEL 7 : grub2 (RHSA-2020:3274)NessusRed Hat Local Security Checks
medium
139288RHEL 7 : grub2 (RHSA-2020:3271)NessusRed Hat Local Security Checks
medium
139287RHEL 7 : grub2 (RHSA-2020:3276)NessusRed Hat Local Security Checks
medium
139284RHEL 7 : grub2 (RHSA-2020:3273)NessusRed Hat Local Security Checks
medium
139283RHEL 7 : grub2 (RHSA-2020:3275)NessusRed Hat Local Security Checks
medium
139243Photon OS 2.0: Grub2 PHSA-2020-2.0-0267NessusPhotonOS Local Security Checks
medium
139242Photon OS 1.0: Grub2 PHSA-2020-1.0-0311NessusPhotonOS Local Security Checks
medium
139239Windows Security Feature Bypass in Secure Boot (BootHole)NessusWindows
medium
139236CentOS 7 : grub2 (CESA-2020:3217)NessusCentOS Local Security Checks
medium
139198RHEL 7 : grub2 (RHSA-2020:3217)NessusRed Hat Local Security Checks
medium
139194RHEL 8 : grub2 (RHSA-2020:3216)NessusRed Hat Local Security Checks
medium
139193RHEL 8 : grub2 (RHSA-2020:3223)NessusRed Hat Local Security Checks
medium
139192RHEL 8 : grub2 (RHSA-2020:3227)NessusRed Hat Local Security Checks
medium
139179Ubuntu 16.04 LTS / 18.04 LTS / 20.04 : GRUB 2 vulnerabilities (USN-4432-1)NessusUbuntu Local Security Checks
medium
139178SUSE SLES12 Security Update : grub2 (SUSE-SU-2020:2079-1)NessusSuSE Local Security Checks
medium
139177SUSE SLES12 Security Update : grub2 (SUSE-SU-2020:2078-1)NessusSuSE Local Security Checks
medium
139176SUSE SLED15 / SLES15 Security Update : grub2 (SUSE-SU-2020:2077-1)NessusSuSE Local Security Checks
medium
139175SUSE SLES12 Security Update : grub2 (SUSE-SU-2020:2076-1)NessusSuSE Local Security Checks
medium
139174SUSE SLED15 / SLES15 Security Update : grub2 (SUSE-SU-2020:2074-1)NessusSuSE Local Security Checks
medium
139173SUSE SLES15 Security Update : grub2 (SUSE-SU-2020:2073-1)NessusSuSE Local Security Checks
medium
139165Oracle Linux 8 : grub2 (ELSA-2020-5786)NessusOracle Linux Local Security Checks
critical
139164Oracle Linux 7 : grub2 (ELSA-2020-5782)NessusOracle Linux Local Security Checks
critical
139099Debian DSA-4735-1 : grub2 - security updateNessusDebian Local Security Checks
medium