CVE-2021-27197

Public Exploit

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.29%
Vendor Advisory pelco.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-history release notes vendor advisory
https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server_AFW.txt third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-27197?
CVE-2021-27197 has been scored as a high severity vulnerability.
How to fix CVE-2021-27197?
To fix CVE-2021-27197, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27197 being actively exploited in the wild?
It is possible that CVE-2021-27197 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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