CVE-2020-12495 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 08 Dec 2020, 18:44 UTC Published: 19 Nov 2020, 18:15 UTC

CVE-2020-12495
Vulnerability Scoring

8.8
/10

Attack Complexity Details

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

CIA Impact Definition

  • Confidentiality: HIGH IMPACT
  • Integrity: HIGH IMPACT
  • Availability: HIGH IMPACT

CVE-2020-12495 Vulnerability Summary

Endress+Hauser Ecograph T (Neutral/Private Label) (RSG35, ORSG35) with Firmware version prior to V2.0.0 is prone to improper privilege management. The affected device has a web-based user interface with a role-based access system. Users with different roles have different write and read privileges. The access system is based on dynamic "tokens". The vulnerability is that user sessions are not closed correctly and a user with fewer rights is assigned the higher rights when he logs on.

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-12495. 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-2020-12495, 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-2020-12495, 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: 0.104% (probability of exploit)

EPSS Percentile: 44.25% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 55.75% of others.

CVE-2020-12495 Detailed Information and External References

References

CWE

CWE-269

CAPEC

  • Privilege Abuse CAPEC-122 An adversary is able to exploit features of the target that should be reserved for privileged users or administrators but are exposed to use by lower or non-privileged accounts. Access to sensitive information and functionality must be controlled to ensure that only authorized users are able to access these resources.
  • Privilege Escalation CAPEC-233 An adversary exploits a weakness enabling them to elevate their privilege and perform an action that they are not supposed to be authorized to perform.
  • Restful Privilege Elevation CAPEC-58 An adversary identifies a Rest HTTP (Get, Put, Delete) style permission method allowing them to perform various malicious actions upon server data due to lack of access control mechanisms implemented within the application service accepting HTTP messages.

Vulnerable Configurations

  • cpe:2.3:h:endress:rsg35:-:*:*:*:*:*:*:*
    cpe:2.3:h:endress:rsg35:-:*:*:*:*:*:*:*
  • cpe:2.3:h:endress:rsg45:-:*:*:*:*:*:*:*
    cpe:2.3:h:endress:rsg45:-:*:*:*:*:*:*:*
  • cpe:2.3:h:endress:orsg35:-:*:*:*:*:*:*:*
    cpe:2.3:h:endress:orsg35:-:*:*:*:*:*:*:*
  • cpe:2.3:h:endress:orsg45:-:*:*:*:*:*:*:*
    cpe:2.3:h:endress:orsg45:-:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

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