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Rewterz Threat Advisory – Multiple EOL And NAP Vulnerabilities

Severity

High

Analysis Summary

CVE-2021-34352 

QNAP EOL could allow a remote attacker to execute commands on the system, caused by a command injection vulnerability when running QVR. A remote attacker could exploit the vulnerability to execute arbitrary commands to execute commands on the system.

CVE-2021-34354; CVE-2021-34356 

QNAP NAS is vulnerable to cross-site scripting, caused by improper validation of user-supplied input when running Photo Station. A remote attacker could exploit this vulnerability to inject malicious script into a Web page which would be executed in a victim’s Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.

CVE-2021-34355 

QNAP NAS is vulnerable to cross-site scripting, caused by improper validation of user-supplied input when running Photo Station. A remote attacker could exploit this vulnerability to inject malicious script into a Web page which would be executed in a victim’s Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.

Impact

  • Command Execution
  • Cross-Site Scripting
  • Credential Theft

Affected Vendors

  • QNAP

Affected Products

  • QNAP Photo Station
  • QNAP QVR

Remediation

Refer to QNAP Advisory for patch, upgrade, or suggested workaround information.

CVE-2021-34352

https://www.qnap.com/en/security-advisory/qsa-21-38

CVE-2021-34354 ; CVE-2021-34356

https://www.qnap.com/en/security-advisory/qsa-21-41

CVE-2021-34355

https://www.qnap.com/en/security-advisory/qsa-21-42

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