CVE-2020-0477 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 21 Jul 2021, 11:39 UTC Published: 15 Dec 2020, 16:15 UTC

CVE-2020-0477
Vulnerability Scoring

5.5
/10

Attack Complexity Details

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

CIA Impact Definition

  • Confidentiality: HIGH IMPACT
  • Integrity:
  • Availability:

CVE-2020-0477 Vulnerability Summary

In sendLinkConfigurationChangedBroadcast of ClientModeImpl.java, there is a possible information disclosure due to a missing permission check. This could lead to local information disclosure of the current network configuration with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-162246414

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-0477. 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-2020-0477, 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-2020-0477, 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: 0.085% (probability of exploit)

EPSS Percentile: 38.72% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 61.28% of others.

CVE-2020-0477 Detailed Information and External References

References

CWE

CWE-862

CAPEC

  • Exploitation of Thunderbolt Protection Flaws CAPEC-665 An adversary leverages a firmware weakness within the Thunderbolt protocol, on a computing device to manipulate Thunderbolt controller firmware in order to exploit vulnerabilities in the implementation of authorization and verification schemes within Thunderbolt protection mechanisms. Upon gaining physical access to a target device, the adversary conducts high-level firmware manipulation of the victim Thunderbolt controller SPI (Serial Peripheral Interface) flash, through the use of a SPI Programing device and an external Thunderbolt device, typically as the target device is booting up. If successful, this allows the adversary to modify memory, subvert authentication mechanisms, spoof identities and content, and extract data and memory from the target device. Currently 7 major vulnerabilities exist within Thunderbolt protocol with 9 attack vectors as noted in the Execution Flow.

Vulnerable Configurations

  • cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
    cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

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