CVE-2020-26583 Vulnerability Analysis & Exploit Details

CVE-2020-26583
Vulnerability Scoring

6.1
/10
High Risk

If left unpatched, CVE-2020-26583 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2020-26583 Details

Status: Analyzed

Last updated: 🕢 29 Oct 2020, 19:46 UTC
Originally published on: 🕕 16 Oct 2020, 06:15 UTC

Time between publication and last update: 13 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2020-26583 Vulnerability Summary

CVE-2020-26583: An issue was discovered in Sage DPW 2020_06_x before 2020_06_002. It allows unauthenticated users to upload JavaScript (in a file) via the expenses claiming functionality. However, to view the file, authentication is required. By exploiting this vulnerability, an attacker can persistently include arbitrary HTML or JavaScript code into the affected web page. The vulnerability can be used to change the contents of the displayed site, redirect to other sites, or steal user credentials. Additionally, users are potential victims of browser exploits and JavaScript malware.

Assessing the Risk of CVE-2020-26583

Access Complexity Graph

The exploitability of CVE-2020-26583 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-2020-26583

With low attack complexity and no required privileges, CVE-2020-26583 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

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-2020-26583, 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-2020-26583, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2020-26583 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2020-26583 may cause minor changes to data without severely impacting its accuracy.
  • Availability: None
    CVE-2020-26583 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: 0.116% (probability of exploit)

EPSS Percentile: 47.14% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 52.86% of others.

CVE-2020-26583 References

External References

CWE Common Weakness Enumeration

CWE-434

CAPEC Common Attack Pattern Enumeration and Classification

  • Accessing Functionality Not Properly Constrained by ACLs CAPEC-1 In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.

Vulnerable Configurations

  • cpe:2.3:a:sagedpw:sage_dpw:2020_06_000:*:*:*:*:*:*:*
    cpe:2.3:a:sagedpw:sage_dpw:2020_06_000:*:*:*:*:*:*:*
  • cpe:2.3:a:sagedpw:sage_dpw:2020_06_001:*:*:*:*:*:*:*
    cpe:2.3:a:sagedpw:sage_dpw:2020_06_001:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2020-26583: Combat Critical CVE Threats

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