CVE-2021-27197 Information

Description

DSUtility.dll in Pelco Digital Sentry Server before 7.19.67 has an arbitrary file write vulnerability. The AppendToTextFile method doesn’t check if it’s being called from the application or from a malicious user. The vulnerability is triggered when a remote attacker crafts an HTML page (e.g. with \OBJECT classid=\ and <SCRIPT language=‘vbscript’>) to overwrite arbitrary files.

CVSS Vector

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

Reference

https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-history https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server_AFW.txt

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1