CVE-2020-2499 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 28 Dec 2020, 15:39 UTC Published: 24 Dec 2020, 02:15 UTC

CVE-2020-2499
Vulnerability Scoring

7.2
/10

Attack Complexity Details

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

CIA Impact Definition

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

CVE-2020-2499 Vulnerability Summary

A hard-coded password vulnerability has been reported to affect earlier versions of QES. If exploited, this vulnerability could allow attackers to log in with a hard-coded password. QNAP has already fixed the issue in QES 2.1.1 Build 20200515 and later.

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-2499. 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-2020-2499, 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-2020-2499, 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: 0.093% (probability of exploit)

EPSS Percentile: 41.57% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 58.43% of others.

CVE-2020-2499 Detailed Information and External References

References

CWE

CWE-798

CAPEC

  • Read Sensitive Constants Within an Executable CAPEC-191 An adversary engages in activities to discover any sensitive constants present within the compiled code of an executable. These constants may include literal ASCII strings within the file itself, or possibly strings hard-coded into particular routines that can be revealed by code refactoring methods including static and dynamic analysis.
  • Try Common or Default Usernames and Passwords CAPEC-70 An adversary may try certain common or default usernames and passwords to gain access into the system and perform unauthorized actions. An adversary may try an intelligent brute force using empty passwords, known vendor default credentials, as well as a dictionary of common usernames and passwords. Many vendor products come preconfigured with default (and thus well-known) usernames and passwords that should be deleted prior to usage in a production environment. It is a common mistake to forget to remove these default login credentials. Another problem is that users would pick very simple (common) passwords (e.g. "secret" or "password") that make it easier for the attacker to gain access to the system compared to using a brute force attack or even a dictionary attack using a full dictionary.

Vulnerable Configurations

  • cpe:2.3:a:qnap:qes:1.1.4:-:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:-:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20170720:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20170720:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20170804:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20170804:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20170824:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20170824:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20170908:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20170908:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20170930:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20170930:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20171102:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20171102:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20171121:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20171121:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20171208:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20171208:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20171228:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20171228:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20180208:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20180208:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20180302:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20180302:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20180309:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20180309:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20180328:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20180328:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20180524:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20180524:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20180529:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20180529:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20180719:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20180719:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20180903:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20180903:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:1.1.4:build_20190213:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:1.1.4:build_20190213:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:-:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20180206:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20180206:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20180221:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20180221:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20180222:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20180222:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20180309:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20180309:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20180402:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20180402:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20180502:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20180502:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20180605:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20180605:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20180808:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20180808:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20181026:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20181026:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20181030:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20181030:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20190125:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20190125:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20190131:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20190131:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20190423:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20190423:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20190514:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20190514:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20190528:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20190528:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.0.0:build_20190627:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.0.0:build_20190627:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:-:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:-:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:build_20190510:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:build_20190510:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:build_20190528:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:build_20190528:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:build_20190711:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:build_20190711:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:build_20190719:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:build_20190719:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:build_20190905:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:build_20190905:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:build_20191015:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:build_20191015:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:build_20191107:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:build_20191107:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:build_20191125:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:build_20191125:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.0:build_20200107:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.0:build_20200107:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.1:-:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.1:-:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.1:build_20200211:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.1:build_20200211:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.1:build_20200303:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.1:build_20200303:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.1:build_20200319:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.1:build_20200319:*:*:*:*:*:*
  • cpe:2.3:a:qnap:qes:2.1.1:build_20200424:*:*:*:*:*:*
    cpe:2.3:a:qnap:qes:2.1.1:build_20200424:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

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