CVE-2023-21195 Vulnerability Analysis & Exploit Details

CVE-2023-21195
Vulnerability Scoring

4.5
/10
Medium Risk

The vulnerability CVE-2023-21195 could compromise system integrity but typically requires user interaction to be exploited.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Adjacent_network
    Attack Vector Under Analysis
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2023-21195 Details

Status: Modified

Last updated: 🕢 21 Nov 2024, 07:42 UTC
Originally published on: 🕕 28 Jun 2023, 18:15 UTC

Time between publication and last update: 511 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2023-21195 Vulnerability Summary

CVE-2023-21195: In btm_ble_periodic_adv_sync_tx_rcvd of btm_ble_gap.cc, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local information disclosure over Bluetooth, if the firmware were compromised with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-233879420

Assessing the Risk of CVE-2023-21195

Access Complexity Graph

The exploitability of CVE-2023-21195 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2023-21195

The exploitability of CVE-2023-21195 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2023-21195, 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.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2023-21195, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2023-21195 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: None
    CVE-2023-21195 poses no threat to data integrity.
  • Availability: None
    CVE-2023-21195 does not impact system availability.

Exploit Prediction Scoring System (EPSS)

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

EPSS Score: 0.042% (probability of exploit)

EPSS Percentile: 5.07% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 94.93% of others.

CVE-2023-21195 References

External References

CWE Common Weakness Enumeration

CWE-125

CAPEC Common Attack Pattern Enumeration and Classification

  • Overread Buffers CAPEC-540 An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Vulnerable Configurations

  • cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*
    cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2023-21195: Combat Critical CVE Threats

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