CVE-2020-2491 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 11 Dec 2020, 14:17 UTC Published: 10 Dec 2020, 04:15 UTC

CVE-2020-2491
Vulnerability Scoring

6.1
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: NETWORK
  • Privileges Required: None
  • Scope: CHANGED
  • User Interaction: REQUIRED

CIA Impact Definition

  • Confidentiality: Low Impact
  • Integrity: Low Impact
  • Availability:

CVE-2020-2491 Vulnerability Summary

This cross-site scripting vulnerability in Photo Station allows remote attackers to inject malicious code. QANP We have already fixed this vulnerability in the following versions of Photo Station. QTS 4.5.1: Photo Station 6.0.12 and later QTS 4.4.3: Photo Station 6.0.12 and later QTS 4.3.6: Photo Station 5.7.12 and later QTS 4.3.4: Photo Station 5.7.13 and later QTS 4.3.3: Photo Station 5.4.10 and later QTS 4.2.6: Photo Station 5.2.11 and later

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-2491. 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-2020-2491, 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-2020-2491, 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: 0.115% (probability of exploit)

EPSS Percentile: 46.65% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 53.35% of others.

CVE-2020-2491 Detailed Information and External References

References

CWE

CWE-80

CAPEC

  • XSS Targeting Non-Script Elements CAPEC-18 This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an adversary to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote adversary to collect and interpret the output of said attack.
  • PHP Remote File Inclusion CAPEC-193 In this pattern the adversary is able to load and execute arbitrary code remotely available from the application. This is usually accomplished through an insecurely configured PHP runtime environment and an improperly sanitized "include" or "require" call, which the user can then control to point to any web-accessible file. This allows adversaries to hijack the targeted application and force it to execute their own instructions.
  • XSS Through HTTP Query Strings CAPEC-32 An adversary embeds malicious script code in the parameters of an HTTP query string and convinces a victim to submit the HTTP request that contains the query string to a vulnerable web application. The web application then procedes to use the values parameters without properly validation them first and generates the HTML code that will be executed by the victim's browser.
  • XSS Through HTTP Headers CAPEC-86 An adversary exploits web applications that generate web content, such as links in a HTML page, based on unvalidated or improperly validated data submitted by other actors. XSS in HTTP Headers attacks target the HTTP headers which are hidden from most users and may not be validated by web applications.

Vulnerable Configurations

  • cpe:2.3:a:qnap:photo_station:-:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:-:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.4:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.5:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.6:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.6:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.7:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.7:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.8:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.8:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.9:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.9:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.2.14:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.2.14:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.3.4:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.3.4:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.3.5:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.3.5:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.3.6:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.3.6:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.2:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.3:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.3:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.4:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.4:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.5:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.5:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.6:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.6:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.7:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.7:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.8:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.8:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.9:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.9:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.10:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.10:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.11:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.11:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.12:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.12:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.13:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.13:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.4.15:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.4.15:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.6.2:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.6.2:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.6.3:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.6.3:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.0:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.1:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.1:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.2:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.2:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.3:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.3:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.4:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.4:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.5:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.5:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.6:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.6:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.11:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.11:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.12:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.12:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.13:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.13:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.14:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.14:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.15:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.15:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.16:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.16:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:5.7.18:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:5.7.18:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.7:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.7:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.8:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.8:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.9:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.9:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.10:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.10:*:*:*:*:*:*:*
  • cpe:2.3:a:qnap:photo_station:6.0.11:*:*:*:*:*:*:*
    cpe:2.3:a:qnap:photo_station:6.0.11:*:*:*:*:*:*:*
  • cpe:2.3:o:qnap:qts:4.5.1:*:*:*:*:*:*:*
    cpe:2.3:o:qnap:qts:4.5.1:*:*:*:*:*:*:*
  • cpe:2.3:o:qnap:qts:4.4.3:*:*:*:*:*:*:*
    cpe:2.3:o:qnap:qts:4.4.3:*:*:*:*:*:*:*
  • cpe:2.3:o:qnap:qts:4.3.6:*:*:*:*:*:*:*
    cpe:2.3:o:qnap:qts:4.3.6:*:*:*:*:*:*:*
  • cpe:2.3:o:qnap:qts:4.3.4:*:*:*:*:*:*:*
    cpe:2.3:o:qnap:qts:4.3.4:*:*:*:*:*:*:*
  • cpe:2.3:o:qnap:qts:4.3.3:*:*:*:*:*:*:*
    cpe:2.3:o:qnap:qts:4.3.3:*:*:*:*:*:*:*
  • cpe:2.3:o:qnap:qts:4.2.6:*:*:*:*:*:*:*
    cpe:2.3:o:qnap:qts:4.2.6:*:*:*:*:*:*:*

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

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