CVE-2021-35215 Vulnerability Analysis & Exploit Details

CVE-2021-35215
Vulnerability Scoring

8.9
/10
Severe Risk

Cybersecurity professionals consider CVE-2021-35215 an immediate threat requiring urgent mitigation.

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: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2021-35215 Details

Status: Modified

Last updated: 🕕 21 Nov 2024, 06:12 UTC
Originally published on: 🕒 01 Sep 2021, 15:15 UTC

Time between publication and last update: 1176 days

CVSS Release: version 3

CVSS3 Source

psirt@solarwinds.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2021-35215 Vulnerability Summary

CVE-2021-35215: Insecure deserialization leading to Remote Code Execution was detected in the Orion Platform version 2020.2.5. Authentication is required to exploit this vulnerability.

Assessing the Risk of CVE-2021-35215

Access Complexity Graph

The exploitability of CVE-2021-35215 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-2021-35215

CVE-2021-35215 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation 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-2021-35215, 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-2021-35215, 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-2021-35215 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2021-35215 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: Low
    CVE-2021-35215 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: 3.987% (probability of exploit)

EPSS Percentile: 92.13% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 7.8700000000000045% of others.

CVE-2021-35215 References

External References

CWE Common Weakness Enumeration

CWE-502

CAPEC Common Attack Pattern Enumeration and Classification

  • Object Injection CAPEC-586 An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.

Vulnerable Configurations

  • cpe:2.3:a:solarwinds:orion_platform:2016.1:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2016.1:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2016.1:hotfix1:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2016.1:hotfix1:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2016.1:hotfix2:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2016.1:hotfix2:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2016.1:hotfix3:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2016.1:hotfix3:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2016.1:hotfix4:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2016.1:hotfix4:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2016.2:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2016.2:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2016.2:hotfix1:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2016.2:hotfix1:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2016.2:hotfix2:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2016.2:hotfix2:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.1:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.1:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.1:hotfix1:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.1:hotfix1:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.1:hotfix2:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.1:hotfix2:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.1:hotfix3:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.1:hotfix3:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.3:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.3:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix1:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix1:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix2:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix2:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix3:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix3:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix4:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix4:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix5:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2017.3:hotfix5:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.2:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.2:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix1:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix1:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix2:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix2:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix3:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix3:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix4:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix4:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix5:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix5:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix6:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.2:hotfix6:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.4:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.4:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.4:hotfix1:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.4:hotfix1:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.4:hotfix2:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.4:hotfix2:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2018.4:hotfix3:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2018.4:hotfix3:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.2:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.2:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.2:hotfix1:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.2:hotfix1:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.2:hotfix2:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.2:hotfix2:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.2:hotfix3:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.2:hotfix3:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.4:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.4:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.4.2:*:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix1:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix1:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix2:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix2:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix3:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix3:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix4:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix4:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix5:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2019.4:hotfix5:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2020.2:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2020.2:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2020.2.1:-:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2020.2.1:-:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2020.2.1:hotfix1:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2020.2.1:hotfix1:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2020.2.4:*:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2020.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:solarwinds:orion_platform:2020.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:solarwinds:orion_platform:2020.2.5:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2021-35215: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2025-26205 – Lua 5.4.7, when the debug library is used, has a out-of-bounds read and segmentation violation in mainpositionTV in ltable.c. NOTE: this is dispute...
  • CVE-2025-26204 – Lua 5.4.7, when the debug library is used, has a out-of-bounds read and segmentation violation in equalkey in ltable.c. NOTE: this is disputed beca...
  • CVE-2025-2129 – A vulnerability was found in Mage AI 0.9.75. It has been classified as problematic. This affects an unknown part. The manipulation leads to insecur...
  • CVE-2025-2127 – A vulnerability was found in JoomlaUX JUX Real Estate 3.4.0 on Joomla. It has been classified as problematic. Affected is an unknown function of th...
  • CVE-2025-2126 – A vulnerability was found in JoomlaUX JUX Real Estate 3.4.0 on Joomla and classified as critical. This issue affects some unknown processing of the...