6.8
MEDIUM
CVE-2020-26200
Kaspersky UEFI Boot Loader Authentication Bypass (UEFI Bootloader)
Description

A component of Kaspersky custom boot loader allowed loading of untrusted UEFI modules due to insufficient check of their authenticity. This component is incorporated in Kaspersky Rescue Disk (KRD) and was trusted by the Authentication Agent of Full Disk Encryption in Kaspersky Endpoint Security (KES). This issue allowed to bypass the UEFI Secure Boot security feature. An attacker would need physical access to the computer to exploit it. Otherwise, local administrator privileges would be required to modify the boot loader component.

INFO

Published Date :

Feb. 26, 2021, 2:15 p.m.

Last Modified :

July 21, 2021, 11:39 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.9
Affected Products

The following products are affected by CVE-2020-26200 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Kaspersky endpoint_security
2 Kaspersky rescue_disk
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-26200.

URL Resource
https://github.com/CVEProject/cvelist/blob/master/2020/26xxx/CVE-2020-26200.json Third Party Advisory
https://support.kaspersky.com/general/vulnerability.aspx?el=12430#170221 Broken Link

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-26200 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-26200 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-863 CWE-287
  • Initial Analysis by [email protected]

    Mar. 05, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://support.kaspersky.com/general/vulnerability.aspx?el=12430#170221 No Types Assigned https://support.kaspersky.com/general/vulnerability.aspx?el=12430#170221 Broken Link
    Added Reference https://github.com/CVEProject/cvelist/blob/master/2020/26xxx/CVE-2020-26200.json [Third Party Advisory]
    Added CWE NIST CWE-863
    Added CPE Configuration OR *cpe:2.3:a:kaspersky:endpoint_security:10:sp2_mr2:*:*:*:*:*:* *cpe:2.3:a:kaspersky:endpoint_security:10:sp2_mr3:*:*:*:*:*:* *cpe:2.3:a:kaspersky:endpoint_security:11.0.0:*:*:*:*:*:*:* *cpe:2.3:a:kaspersky:endpoint_security:11.0.1:*:*:*:*:*:*:* *cpe:2.3:a:kaspersky:endpoint_security:11.1.0:*:*:*:*:*:*:* *cpe:2.3:a:kaspersky:rescue_disk:*:*:*:*:*:*:*:* versions up to (excluding) 18.0.11.3
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-26200 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} 0.02%

score

0.30654

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability