CVE-2020-2515 Vulnerability Analysis & Exploit Details

CVE-2020-2515
Vulnerability Scoring

5.0
/10
Medium Risk

The vulnerability CVE-2020-2515 could compromise system integrity but typically requires user interaction to be exploited.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2020-2515 Details

Status: Analyzed

Last updated: 🕕 25 Oct 2022, 18:02 UTC
Originally published on: 🕔 15 Jan 2020, 17:15 UTC

Time between publication and last update: 1014 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2020-2515 Vulnerability Summary

CVE-2020-2515: Vulnerability in the Database Gateway for ODBC component of Oracle Database Server. Supported versions that are affected are 11.2.0.4, 12.1.0.2, 12.2.0.1, 18c and 19c. Difficult to exploit vulnerability allows low privileged attacker having Create Session privilege with network access via OracleNet to compromise Database Gateway for ODBC. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Database Gateway for ODBC accessible data as well as unauthorized read access to a subset of Database Gateway for ODBC accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Database Gateway for ODBC. CVSS 3.0 Base Score 5.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L).

Assessing the Risk of CVE-2020-2515

Access Complexity Graph

The exploitability of CVE-2020-2515 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-2020-2515

This vulnerability, CVE-2020-2515, requires a high level of attack complexity and low privileges, making it difficult but not impossible to exploit. Organizations should ensure robust security configurations to mitigate risks.

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-2020-2515, 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-2020-2515, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2020-2515 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2020-2515 may cause minor changes to data without severely impacting its accuracy.
  • Availability: Low
    CVE-2020-2515 may slightly degrade system performance without fully affecting service availability.

Exploit Prediction Scoring System (EPSS)

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

EPSS Score: 0.053% (probability of exploit)

EPSS Percentile: 24.63% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 75.37% of others.

CVE-2020-2515 References

External References

CWE Common Weakness Enumeration

NVD-CWE-noinfo

Vulnerable Configurations

  • cpe:2.3:a:oracle:database_server:11.2.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:oracle:database_server:11.2.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:database_server:12.1.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:oracle:database_server:12.1.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:database_server:12.2.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:oracle:database_server:12.2.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:database_server:18c:*:*:*:*:*:*:*
    cpe:2.3:a:oracle:database_server:18c:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:database_server:19c:*:*:*:*:*:*:*
    cpe:2.3:a:oracle:database_server:19c:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2020-2515: Combat Critical CVE Threats

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