CVE-2021-29084 Path traversal in DiskStation Manager (DSM)
Remote attackers can read arbitrary files via injection in the Security Advisor report management component of Synology DSM.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-29084?
CVE-2021-29084 is a high-severity path traversal vulnerability in Synology Diskstation Manager, published on 23 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in Security Advisor report management component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to read arbitrary files via unspecified vectors.
Weakness: CWE-74
Which versions are affected by CVE-2021-29084?
It affects 2 products.
Products include Synology Diskstation Manager, Synology Diskstation Manager Unified Controller.
How do I fix CVE-2021-29084?
No fix has been published for CVE-2021-29084 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-2021-29084 being exploited?
There is no known exploitation of CVE-2021-29084 in the wild and no public exploit code.
Other vulnerabilities in Synology Diskstation Manager
Sources
Also known as GHSA-487r-hmj9-h7h2.