CVE-2021-37196 Path traversal in COMOS V10.2
An attacker can exploit path traversal in COMOS Web to store files in arbitrary folders accessible by the webservice.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-37196?
CVE-2021-37196 is a medium-severity path traversal vulnerability in Siemens COMOS V10.2, published on 11 Jan 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been identified in COMOS V10.2 (All versions only if web components are used), COMOS V10.3 (All versions < V10.3.3.3 only if web components are used), COMOS V10.3 (All versions >= V10.3.3.3 only if web components are used), COMOS V10.4 (All versions < V10.4.1 only if web components are used). The COMOS Web component of COMOS unpacks specially crafted archive files to relative paths. This vulnerability could allow an attacker to store files in any folder accessible by the COMOS Web webservice.
Which versions are affected by CVE-2021-37196?
It affects 1 product.
Products include Siemens Comos.
How do I fix CVE-2021-37196?
No fix has been published for CVE-2021-37196 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-2021-37196 being exploited?
There is no known exploitation of CVE-2021-37196 in the wild and no public exploit code.
Other vulnerabilities in Siemens COMOS V10.2
Sources
Also known as GHSA-mjj9-wv6r-p28g.