CVE-2020-3704 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 21 Jul 2021, 11:39 UTC Published: 02 Nov 2020, 07:15 UTC

CVE-2020-3704
Vulnerability Scoring

7.5
/10

Attack Complexity Details

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

CIA Impact Definition

  • Confidentiality:
  • Integrity:
  • Availability: HIGH IMPACT

CVE-2020-3704 Vulnerability Summary

u'While processing invalid connection request PDU which is nonstandard (interval or timeout is 0) from central device may lead peripheral system enter into dead lock state.(This CVE is equivalent to InvalidConnectionRequest(CVE-2019-19193) mentioned in sweyntooth paper)' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in Agatti, APQ8009, APQ8017, APQ8053, AR9344, Bitra, IPQ5018, Kamorta, MDM9607, MDM9640, MDM9650, MSM8996AU, Nicobar, QCA6174A, QCA6390, QCA6574AU, QCA9377, QCA9886, QCM6125, QCN7605, QCS404, QCS405, QCS605, QCS610, QRB5165, Rennell, SA415M, SA515M, Saipan, SC7180, SC8180X, SDA845, SDM660, SDM670, SDM710, SDM845, SDM850, SDX20, SDX24, SDX55, SM6150, SM7150, SM8150, SM8250, SXR1130, SXR2130

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-3704. 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-2020-3704, 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-2020-3704, 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: 0.129% (probability of exploit)

EPSS Percentile: 48.96% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 51.04% of others.

CVE-2020-3704 Detailed Information and External References

References

CWE

CWE-667

CAPEC

  • Forced Deadlock CAPEC-25 The adversary triggers and exploits a deadlock condition in the target software to cause a denial of service. A deadlock can occur when two or more competing actions are waiting for each other to finish, and thus neither ever does. Deadlock conditions can be difficult to detect.
  • Leveraging Race Conditions CAPEC-26 The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.
  • Leveraging Race Conditions via Symbolic Links CAPEC-27 This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.

Vulnerable Configurations

  • cpe:2.3:h:qualcomm:agatti:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:agatti:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:agatti_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:agatti_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:apq8009:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:apq8009:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:apq8009_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:apq8009_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:apq8017:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:apq8017:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:apq8017_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:apq8017_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:apq8053:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:apq8053:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:apq8053_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:apq8053_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:ar9344:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:ar9344:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:ar9344_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:ar9344_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:bitra:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:bitra:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:bitra_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:bitra_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:ipq5018:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:ipq5018:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:ipq5018_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:ipq5018_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:kamorta:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:kamorta:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:kamorta_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:kamorta_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:mdm9607_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:mdm9607_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:mdm9607:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:mdm9607:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:mdm9640_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:mdm9640_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:mdm9640:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:mdm9640:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:mdm9650:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:mdm9650:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:msm8996au_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:msm8996au_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:msm8996au:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:msm8996au:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:nicobar_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:nicobar_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:nicobar:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:nicobar:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qca6174a:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qca6174a:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qca6390:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qca6390:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qca6574au:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qca6574au:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qca9377_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qca9377_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qca9377:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qca9377:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qca9886_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qca9886_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qca9886:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qca9886:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qcm6125_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qcm6125_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qcm6125:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qcm6125:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qcn7605_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qcn7605_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qcn7605:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qcn7605:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qcs404_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qcs404_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qcs404:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qcs404:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qcs405_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qcs405_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qcs405:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qcs405:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qcs605_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qcs605_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qcs605:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qcs605:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qcs610_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qcs610_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qcs610:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qcs610:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:qrb5165_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:qrb5165_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:qrb5165:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:qrb5165:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:rennell_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:rennell_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:rennell:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:rennell:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sa415m_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sa415m_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sa415m:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sa415m:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sa515m_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sa515m_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sa515m:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sa515m:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:saipan_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:saipan_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:saipan:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:saipan:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sc7180_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sc7180_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sc7180:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sc7180:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sc8180x_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sc8180x_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sc8180x:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sc8180x:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sda845_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sda845_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sda845:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sda845:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sdm660_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sdm660_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sdm660:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sdm660:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sdm670_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sdm670_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sdm670:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sdm670:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sdm710_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sdm710_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sdm710:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sdm710:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sdm845_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sdm845_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sdm845:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sdm845:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sdm850_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sdm850_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sdm850:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sdm850:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sdx20_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sdx20_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sdx20:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sdx20:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sdx24_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sdx24_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sdx24:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sdx24:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sdx55:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sdx55:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sm6150_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sm6150_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sm6150:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sm6150:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sm7150_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sm7150_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sm7150:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sm7150:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sm8150_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sm8150_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sm8150:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sm8150:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sm8250_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sm8250_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sm8250:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sm8250:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sxr1130_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sxr1130_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sxr1130:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sxr1130:-:*:*:*:*:*:*:*
  • cpe:2.3:o:qualcomm:sxr2130_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:qualcomm:sxr2130_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:qualcomm:sxr2130:-:*:*:*:*:*:*:*
    cpe:2.3:h:qualcomm:sxr2130:-:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

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