CVE-2021-26917 Path traversal in n/a
Attackers can write screen captures to arbitrary directories via a crafted API notification path in PyBitmessage.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26917?
CVE-2021-26917 is a medium-severity path traversal vulnerability in n/a, published on 8 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
PyBitmessage through 0.6.3.2 allows attackers to write screen captures to Potentially Unwanted Directories via a crafted apinotifypath value. NOTE: the discoverer states "security mitigation may not be necessary as there is no evidence yet that these screen intercepts are actually transported away from the local host." NOTE: it is unclear whether there are any common use cases in which apinotifypath is controlled by an attacker
Which versions are affected by CVE-2021-26917?
It affects 1 product.
Products include Bitmessage Pybitmessage.
How do I fix CVE-2021-26917?
No fix has been published for CVE-2021-26917 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-2021-26917 being exploited?
There is no known exploitation of CVE-2021-26917 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-j9hf-937w-gvx5.