CVE-2021-27197 Path traversal in n/a
Remote attackers can overwrite arbitrary files via a crafted HTML page due to insufficient validation in DSUtility.dll, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-27197?
CVE-2021-27197 is a high-severity path traversal vulnerability in n/a, published on 12 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-346
Which versions are affected by CVE-2021-27197?
It affects 1 product.
Products include Pelco Digital Sentry Server.
How do I fix CVE-2021-27197?
No fix has been published for CVE-2021-27197 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-27197 being exploited?
There is no known exploitation of CVE-2021-27197 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-gc59-gfp7-vrrr.