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Rewterz Threat Advisory – Multiple Microsoft Dynamics 365 Vulnerabilities

Severity

High

Analysis Summary

CVE-2023-21571 CVSS:5.4

Microsoft Dynamics 365 (on-premises) is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote authenticated 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-2023-21572 CVSS:6.5

Microsoft Dynamics 365 (on-premises) is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote authenticated 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-2023-21573 CVSS:5.4

Microsoft Dynamics 365 (on-premises) is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote authenticated 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

  • Gain Access

Indicators Of Compromise

CVE

  • CVE-2023-21571
  • CVE-2023-21572
  • CVE-2023-21573

Affected Vendors

Microsoft

Affected Products

  • Microsoft Dynamics 365 (on-premises) 9.1
  • Microsoft Dynamics 365 (on-premises) 9.0

Remediation

Use Microsoft Automatic Update to apply the appropriate patch for your system, or the Microsoft Security Update Guide to search for available patches.

CVE-2023-21571

CVE-2023-21572

CVE-2023-21573

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