CVE-2020-13799 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 29 Jun 2021, 14:29 UTC Published: 18 Nov 2020, 22:15 UTC

CVE-2020-13799
Vulnerability Scoring

6.8
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: PHYSICAL
  • Privileges Required: None
  • Scope: UNCHANGED
  • User Interaction: NONE

CIA Impact Definition

  • Confidentiality: HIGH IMPACT
  • Integrity: HIGH IMPACT
  • Availability: HIGH IMPACT

CVE-2020-13799 Vulnerability Summary

Western Digital has identified a security vulnerability in the Replay Protected Memory Block (RPMB) protocol as specified in multiple standards for storage device interfaces, including all versions of eMMC, UFS, and NVMe. The RPMB protocol is specified by industry standards bodies and is implemented by storage devices from multiple vendors to assist host systems in securing trusted firmware. Several scenarios have been identified in which the RPMB state may be affected by an attacker without the knowledge of the trusted component that uses the RPMB feature.

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-13799. It helps visualize the difficulty level and privilege requirements needed to exploit this vulnerability, providing a quick assessment of its exploitation feasibility.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-13799, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

Impact Analysis

Below is the Impact Analysis for CVE-2020-13799, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.108% (probability of exploit)

EPSS Percentile: 45.13% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 54.87% of others.

CVE-2020-13799 Detailed Information and External References

References

CWE

CWE-294

CAPEC

  • Session Sidejacking CAPEC-102 Session sidejacking takes advantage of an unencrypted communication channel between a victim and target system. The attacker sniffs traffic on a network looking for session tokens in unencrypted traffic. Once a session token is captured, the attacker performs malicious actions by using the stolen token with the targeted application to impersonate the victim. This attack is a specific method of session hijacking, which is exploiting a valid session token to gain unauthorized access to a target system or information. Other methods to perform a session hijacking are session fixation, cross-site scripting, or compromising a user or server machine and stealing the session token.
  • Kerberoasting CAPEC-509 Through the exploitation of how service accounts leverage Kerberos authentication with Service Principal Names (SPNs), the adversary obtains and subsequently cracks the hashed credentials of a service account target to exploit its privileges. The Kerberos authentication protocol centers around a ticketing system which is used to request/grant access to services and to then access the requested services. As an authenticated user, the adversary may request Active Directory and obtain a service ticket with portions encrypted via RC4 with the private key of the authenticated account. By extracting the local ticket and saving it disk, the adversary can brute force the hashed value to reveal the target account credentials.
  • Remote Services with Stolen Credentials CAPEC-555 This pattern of attack involves an adversary that uses stolen credentials to leverage remote services such as RDP, telnet, SSH, and VNC to log into a system. Once access is gained, any number of malicious activities could be performed.
  • Windows Admin Shares with Stolen Credentials CAPEC-561 An adversary guesses or obtains (i.e. steals or purchases) legitimate Windows administrator credentials (e.g. userID/password) to access Windows Admin Shares on a local machine or within a Windows domain.
  • Reusing Session IDs (aka Session Replay) CAPEC-60 This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.
  • Use of Captured Hashes (Pass The Hash) CAPEC-644 An adversary obtains (i.e. steals or purchases) legitimate Windows domain credential hash values to access systems within the domain that leverage the Lan Man (LM) and/or NT Lan Man (NTLM) authentication protocols.
  • Use of Captured Tickets (Pass The Ticket) CAPEC-645 An adversary uses stolen Kerberos tickets to access systems/resources that leverage the Kerberos authentication protocol. The Kerberos authentication protocol centers around a ticketing system which is used to request/grant access to services and to then access the requested services. An adversary can obtain any one of these tickets (e.g. Service Ticket, Ticket Granting Ticket, Silver Ticket, or Golden Ticket) to authenticate to a system/resource without needing the account's credentials. Depending on the ticket obtained, the adversary may be able to access a particular resource or generate TGTs for any account within an Active Directory Domain.
  • Use of Known Kerberos Credentials CAPEC-652 An adversary obtains (i.e. steals or purchases) legitimate Kerberos credentials (e.g. Kerberos service account userID/password or Kerberos Tickets) with the goal of achieving authenticated access to additional systems, applications, or services within the domain.
  • Browser in the Middle (BiTM) CAPEC-701 An adversary exploits the inherent functionalities of a web browser, in order to establish an unnoticed remote desktop connection in the victim's browser to the adversary's system. The adversary must deploy a web client with a remote desktop session that the victim can access.
  • Adversary in the Middle (AiTM) CAPEC-94 An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.

Vulnerable Configurations

  • cpe:2.3:h:westerndigital:inand_cl_em132:-:*:*:*:*:*:*:*
    cpe:2.3:h:westerndigital:inand_cl_em132:-:*:*:*:*:*:*:*
  • cpe:2.3:h:westerndigital:inand_ix_em132:-:*:*:*:*:*:*:*
    cpe:2.3:h:westerndigital:inand_ix_em132:-:*:*:*:*:*:*:*
  • cpe:2.3:h:westerndigital:inand_ix_em132_xi:-:*:*:*:*:*:*:*
    cpe:2.3:h:westerndigital:inand_ix_em132_xi:-:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:-:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:-:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:0.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:0.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:0.2.0:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:0.2.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:0.3.0:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:0.3.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:1.0.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:1.0.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:1.0.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:1.0.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:1.0.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:1.0.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:1.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:1.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:1.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:1.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.0.0:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.0.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.2.0:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.2.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.3.0:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.3.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.4.0:*:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.4.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.5.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.5.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.5.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.5.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.5.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.5.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.6.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.6.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:2.6.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:2.6.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.0.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.0.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.0.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.0.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.0.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.0.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.1.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.1.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.1.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.1.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.2.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.2.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.2.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.2.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.3.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.3.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.3.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.3.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.3.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.3.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.4.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.4.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.4.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.4.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.5.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.5.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.5.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.5.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.6.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.6.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.6.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.6.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.7.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.7.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.7.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.7.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.8.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.8.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.8.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.8.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.9.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.9.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.9.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.9.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.10.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.10.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.10.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.10.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linaro:op-tee:3.11.0:-:*:*:*:*:*:*
    cpe:2.3:o:linaro:op-tee:3.11.0:-:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

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