CVE-2023-21570: Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability

Overview

Severity
Medium (CVSS 5.4)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C
Category
Spoofing
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2023-Feb
Released
2023-02-14
EPSS Score
1.05% (percentile: 77.6%)

FAQ

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do? The user would have to click on a specially crafted URL to be compromised by the attacker. According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability? Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges. According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability? A user could be tricked into entering credentials or responding to a pop up after opening a specially crafted file or clicking on a link, typically by way of an enticement in an email or URL. According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L)? What does that mean for this vulnerability? Information in the victim's browser associated with the vulnerable URL can be read by the malicious JavaScript code and sent to the attacker. According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of integrity (I:L)? What does that mean for this vulnerability? The user would need to access the URL of the malicious website, which could spoof the content of a legitimate website, and then click a popup displayed on that site.

Affected Products (2)

Microsoft Dynamics

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

Security Updates (2)

Acknowledgments

<a href="https://batr.am/">batram</a>

Revision History

  • 2023-02-14: Information published.